The MPK Poznan Sp. z o.o. Museum of Municipal Transport was established in the oldest building at Municipal Transport Company's Głogowska Street depot - the former electrical substation. The building was erected in 1928-1929 and was in use until the 1960s. The Museum was opened in 2007. Among the oldest exhibits are original features of horse-drawn tram system and financial reports dating back over 130 years to the Posener-Pferde-Eisenbahn Gesellschaft company (Poznan Horse Train Company), the precursor of the MPK Poznan Sp. z o.o.