Spandau Citadel (Berlin)

Germany / Brandenburg / Havelsee / Berlin
 citadel, fortification, interesting place, listed building / architectural heritage, 16th century construction, star fort

has a large collection of bats

Google panorama: goo.gl/maps/rc6oZcQYMmDJmBqWA
Nearby cities:
Coordinates:   52°32'27"N   13°12'46"E