{"id":35448,"date":"2026-06-05T11:38:56","date_gmt":"2026-06-05T09:38:56","guid":{"rendered":"https:\/\/www.polen.travel\/nl\/?p=35448"},"modified":"2026-06-08T10:50:59","modified_gmt":"2026-06-08T08:50:59","slug":"miedzyrzecz-fortified-region-mfr","status":"publish","type":"post","link":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/","title":{"rendered":"Mi\u0119dzyrzecz Fortified Region (MFR)"},"content":{"rendered":"\n<div class=\"wp-block-group is-style-container-medium\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Mi\u0119dzyrzecz Fortified Region (MFR)<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>Wie ge\u00efnteresseerd is in militaire architectuur, verborgen geschiedenis en bijzondere plekken uit de Tweede Wereldoorlog, mag tijdens een bezoek aan de <strong><a href=\"https:\/\/www.polen.travel\/nl\/de-regio-lubuskie\/\" target=\"_blank\" rel=\"noreferrer noopener\">provincie Lubuskie<\/a><\/strong> de <strong><a href=\"https:\/\/bunkry.pl\/\" target=\"_blank\" rel=\"noreferrer noopener\">Mi\u0119dzyrzecz Fortified Region (MFR)<\/a><\/strong>, ook bekend als de Ostwall, zeker niet overslaan. Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie. Het werd in de jaren dertig van de twintigste eeuw op bevel van Adolf Hitler gebouwd om de oostgrens van het toenmalige Duitse Rijk te beschermen.<\/p>\n\n\n\n<p>De MFR maakt indruk door haar enorme schaal en technische vernuft. Het totale gebied van de versterkingen beslaat ongeveer 8.000 km\u00b2. Onder de grond bevindt zich een uitgebreid netwerk van tunnels, gangen, bunkers en militaire ruimtes die vroeger een belangrijk onderdeel vormden van het Duitse verdedigingssysteem. Het ondergrondse communicatienetwerk is meer dan 30 kilometer lang en behoort tot de meest fascinerende overblijfselen van dit type in Europa.<\/p>\n\n\n\n<p>Vandaag de dag is een deel van dit mysterieuze ondergrondse complex opengesteld voor bezoekers. Onder begeleiding van een gids kunt u afdalen in de donkere tunnels en ontdekken hoe dit indrukwekkende systeem werd gebouwd en gebruikt. Tijdens de rondleiding ziet u onder andere bewaarde militaire elementen, technische installaties en wapens, zoals een vlammenwerper en een automatische granaatwerper. De gids brengt de geschiedenis tot leven en laat zien hoe complex, ambitieus en tegelijkertijd angstaanjagend dit bouwproject was.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-style-container-medium\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1170\" height=\"780\" src=\"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg\" alt=\"\" class=\"wp-image-35452\" srcset=\"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg 1170w, https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2-600x400.jpg 600w, https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2-768x512.jpg 768w\" sizes=\"auto, (max-width: 1170px) 100vw, 1170px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-style-container-medium\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Gelukkig hebben de bunkers hun oorspronkelijke militaire functie allang verloren. Tegenwoordig vormen ze een unieke toeristische attractie voor liefhebbers van geschiedenis, architectuur en avontuur. Maar dat is niet alles: de ondergrondse gangen zijn ook een van de belangrijkste overwinteringsplaatsen voor vleermuizen in Europa. Dankzij de duisternis, hoge luchtvochtigheid en constante temperatuur van ongeveer 8\u201310 graden Celsius vinden deze bijzondere dieren hier ideale leefomstandigheden. In de winter kunnen er zelfs tot <strong>32.000 vleermuizen <\/strong>worden aangetroffen, behorend tot 12 verschillende soorten.<\/p>\n\n\n\n<p>Voor toeristen die op zoek zijn naar een bijzondere en onvergetelijke ervaring in Lubuskie, is de MFR zonder twijfel een van de meest indrukwekkende bezienswaardigheden van de regio. <strong><a href=\"https:\/\/bunkry.pl\/\" target=\"_blank\" rel=\"noreferrer noopener\">Plan je bezoek.<\/a><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#eeeeee\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer is-style-spacer-small\"><\/div>\n\n\n\n<div class=\"wp-block-group is-style-container\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-text-align-center\">Ontdek meer Pools militair erfgoed<\/h3>\n\n\n<div class=\"overflow\">\n  <div class=\"post-slider swiper post-slider--small\" data-schema=\"small\">\n\n    <div class=\"swiper-wrapper\">\n              <div class=\"swiper-slide post-slide\">\n                      <a href=\"https:\/\/www.polen.travel\/nl\/de-16-mooiste-forten-van-polen\/\" class=\"post-box post-box--small\" style=\" background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/twierdza_wisloujscie-600x400.jpeg);\">\n          <div class=\"post-box__hover\" style=\"background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/srebrna-Gora-1-600x400.jpg);\"><\/div>\n        <div class=\"post-box__info\">\n            <div class=\"post-box__title\">De 16 mooiste forten van Polen<\/div>\n      <div class=\"post-box__more\">Lees meer <\/div>\n    <\/div>\n  <\/a>\n\n          <\/div>\n              <div class=\"swiper-slide post-slide\">\n                      <a href=\"https:\/\/www.polen.travel\/nl\/wolfsschanze-hitlers-hoofdkwartier\/\" class=\"post-box post-box--small\" style=\" background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/Wilczy-Szaniec-JvandeKuilen-2-600x400.jpg);\">\n          <div class=\"post-box__hover\" style=\"background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/Wilczy-Szaniec-JvandeKuilen-3-600x400.jpg);\"><\/div>\n        <div class=\"post-box__info\">\n            <div class=\"post-box__title\">Wolfsschanze \u2013 Hitlers hoofdkwartier<\/div>\n      <div class=\"post-box__more\">Lees meer <\/div>\n    <\/div>\n  <\/a>\n\n          <\/div>\n              <div class=\"swiper-slide post-slide\">\n                      <a href=\"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/\" class=\"post-box post-box--small\" style=\" background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2-600x400.jpg);\">\n          <div class=\"post-box__hover\" style=\"background-image: url(https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MRF1-600x400.jpg);\"><\/div>\n        <div class=\"post-box__info\">\n            <div class=\"post-box__title\">Mi\u0119dzyrzecz Fortified Region (MFR)<\/div>\n      <div class=\"post-box__more\">Lees meer <\/div>\n    <\/div>\n  <\/a>\n\n          <\/div>\n          <\/div>\n    <div class=\"post-slider__pagination\"><\/div>\n  <\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer is-style-spacer-small\"><\/div>\n\n\n\n<p><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Mi\u0119dzyrzecz Fortified Region (MFR) Wie ge\u00efnteresseerd is in militaire architectuur, verborgen geschiedenis en bijzondere plekken uit de Tweede Wereldoorlog, mag tijdens een bezoek aan de provincie Lubuskie de Mi\u0119dzyrzecz Fortified Region (MFR), ook bekend als de Ostwall, zeker niet overslaan. Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met [&hellip;]<\/p>\n","protected":false},"author":51,"featured_media":35452,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1262],"class_list":["post-35448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-militair-erfgoed"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)<\/title>\n<meta name=\"description\" content=\"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)\" \/>\n<meta property=\"og:description\" content=\"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/\" \/>\n<meta property=\"og:site_name\" content=\"Polen Travel (NL)\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-05T09:38:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-08T08:50:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1170\" \/>\n\t<meta property=\"og:image:height\" content=\"780\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"magdalenastoch\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"magdalenastoch\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/\"},\"author\":{\"name\":\"magdalenastoch\",\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#\\\/schema\\\/person\\\/d8e85fecf0241ba1e48f77f997b72b96\"},\"headline\":\"Mi\u0119dzyrzecz Fortified Region (MFR)\",\"datePublished\":\"2026-06-05T09:38:56+00:00\",\"dateModified\":\"2026-06-08T08:50:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/\"},\"wordCount\":345,\"publisher\":{\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2026\\\/06\\\/MFR2.jpg\",\"articleSection\":[\"Militair erfgoed\"],\"inLanguage\":\"pl-PL\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/\",\"url\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/\",\"name\":\"Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2026\\\/06\\\/MFR2.jpg\",\"datePublished\":\"2026-06-05T09:38:56+00:00\",\"dateModified\":\"2026-06-08T08:50:59+00:00\",\"description\":\"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2026\\\/06\\\/MFR2.jpg\",\"contentUrl\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2026\\\/06\\\/MFR2.jpg\",\"width\":1170,\"height\":780},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/miedzyrzecz-fortified-region-mfr\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home page\",\"item\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Militair erfgoed\",\"item\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/militair-erfgoed\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Mi\u0119dzyrzecz Fortified Region (MFR)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#website\",\"url\":\"https:\\\/\\\/wp-nl.poland.travel\\\/\",\"name\":\"Polen Travel (NL)\",\"description\":\"...\",\"publisher\":{\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/wp-nl.poland.travel\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#organization\",\"name\":\"Polen Travel (NL)\",\"url\":\"https:\\\/\\\/wp-nl.poland.travel\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/en-en.polska.travel\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2022\\\/11\\\/logo.svg\",\"contentUrl\":\"https:\\\/\\\/en-en.polska.travel\\\/wp-content\\\/uploads\\\/sites\\\/23\\\/2022\\\/11\\\/logo.svg\",\"width\":198,\"height\":96,\"caption\":\"Polen Travel (NL)\"},\"image\":{\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/wp-nl.poland.travel\\\/#\\\/schema\\\/person\\\/d8e85fecf0241ba1e48f77f997b72b96\",\"name\":\"magdalenastoch\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g\",\"caption\":\"magdalenastoch\"},\"url\":\"https:\\\/\\\/www.polen.travel\\\/nl\\\/author\\\/magdalenastoch\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)","description":"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/","og_locale":"pl_PL","og_type":"article","og_title":"Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)","og_description":"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.","og_url":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/","og_site_name":"Polen Travel (NL)","article_published_time":"2026-06-05T09:38:56+00:00","article_modified_time":"2026-06-08T08:50:59+00:00","og_image":[{"width":1170,"height":780,"url":"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg","type":"image\/jpeg"}],"author":"magdalenastoch","twitter_card":"summary_large_image","twitter_misc":{"Napisane przez":"magdalenastoch","Szacowany czas czytania":"3 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#article","isPartOf":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/"},"author":{"name":"magdalenastoch","@id":"https:\/\/wp-nl.poland.travel\/#\/schema\/person\/d8e85fecf0241ba1e48f77f997b72b96"},"headline":"Mi\u0119dzyrzecz Fortified Region (MFR)","datePublished":"2026-06-05T09:38:56+00:00","dateModified":"2026-06-08T08:50:59+00:00","mainEntityOfPage":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/"},"wordCount":345,"publisher":{"@id":"https:\/\/wp-nl.poland.travel\/#organization"},"image":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#primaryimage"},"thumbnailUrl":"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg","articleSection":["Militair erfgoed"],"inLanguage":"pl-PL"},{"@type":"WebPage","@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/","url":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/","name":"Mi\u0119dzyrzecz Fortified Region (MFR) - Polen Travel (NL)","isPartOf":{"@id":"https:\/\/wp-nl.poland.travel\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#primaryimage"},"image":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#primaryimage"},"thumbnailUrl":"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg","datePublished":"2026-06-05T09:38:56+00:00","dateModified":"2026-06-08T08:50:59+00:00","description":"Dit indrukwekkende verdedigingscomplex behoort tot de grootste fortificatiesystemen van Europa en wordt vaak vergeleken met de Franse Maginotlinie.","breadcrumb":{"@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#breadcrumb"},"inLanguage":"pl-PL","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/"]}]},{"@type":"ImageObject","inLanguage":"pl-PL","@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#primaryimage","url":"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg","contentUrl":"https:\/\/www.polen.travel\/nl\/wp-content\/uploads\/sites\/23\/2026\/06\/MFR2.jpg","width":1170,"height":780},{"@type":"BreadcrumbList","@id":"https:\/\/www.polen.travel\/nl\/miedzyrzecz-fortified-region-mfr\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home page","item":"https:\/\/www.polen.travel\/nl\/"},{"@type":"ListItem","position":2,"name":"Militair erfgoed","item":"https:\/\/www.polen.travel\/nl\/militair-erfgoed\/"},{"@type":"ListItem","position":3,"name":"Mi\u0119dzyrzecz Fortified Region (MFR)"}]},{"@type":"WebSite","@id":"https:\/\/wp-nl.poland.travel\/#website","url":"https:\/\/wp-nl.poland.travel\/","name":"Polen Travel (NL)","description":"...","publisher":{"@id":"https:\/\/wp-nl.poland.travel\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/wp-nl.poland.travel\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pl-PL"},{"@type":"Organization","@id":"https:\/\/wp-nl.poland.travel\/#organization","name":"Polen Travel (NL)","url":"https:\/\/wp-nl.poland.travel\/","logo":{"@type":"ImageObject","inLanguage":"pl-PL","@id":"https:\/\/wp-nl.poland.travel\/#\/schema\/logo\/image\/","url":"https:\/\/en-en.polska.travel\/wp-content\/uploads\/sites\/23\/2022\/11\/logo.svg","contentUrl":"https:\/\/en-en.polska.travel\/wp-content\/uploads\/sites\/23\/2022\/11\/logo.svg","width":198,"height":96,"caption":"Polen Travel (NL)"},"image":{"@id":"https:\/\/wp-nl.poland.travel\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/wp-nl.poland.travel\/#\/schema\/person\/d8e85fecf0241ba1e48f77f997b72b96","name":"magdalenastoch","image":{"@type":"ImageObject","inLanguage":"pl-PL","@id":"https:\/\/secure.gravatar.com\/avatar\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/7f42d93219121fc2e43b9f2af4d09f198ffdf142765ad70c1aa3e7d78ce037f5?s=96&d=mm&r=g","caption":"magdalenastoch"},"url":"https:\/\/www.polen.travel\/nl\/author\/magdalenastoch\/"}]}},"_links":{"self":[{"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/posts\/35448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/comments?post=35448"}],"version-history":[{"count":5,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/posts\/35448\/revisions"}],"predecessor-version":[{"id":35528,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/posts\/35448\/revisions\/35528"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/media\/35452"}],"wp:attachment":[{"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/media?parent=35448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.polen.travel\/nl\/wp-json\/wp\/v2\/categories?post=35448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}