Complex sentence: The main museum site is located at the former tram depot at Burgwies on tram route 11 in the city's Hirslanden quarter, but the museum also maintains a workshop at the much smaller former tram depot of Wartau on tram route 13 in the Höngg quarter.
Split into simpler sentences: The main museum site is located at the former tram depot "Tramdepot Burgwies", which is on tram route 11 in the city's Hirslanden quarter. The museum also maintains a workshop at the much smaller former tram depot of Wartau on tram route 13 in the Höngg quarter.