Germany's largest and oldest public observatory in Treptower Park, with the 1896 'sky cannon', still the longest movable refracting telescope in the world. Albert Einstein first presented his theory of relativity to the public on the stage of its lecture hall.
- Address
- Alt-Treptow 1, 12435 Berlin
- Hours
- Mon-Wed 09:00-13:00; Thu 09:00-13:00, 21:00-22:00; Fri 09:00-11:30, 16:30-22:00; Sat 12:00-22:00; Sun 13:00-18:30 (Google hours via Wanderlog, 2026-09)
- Best time to go
- Afternoon, Evening · About 1.5 h
- Price
- Museum free; telescope tours and events ticketed
Details can change. Check hours and prices before you go.
Good to know
- The astronomy museum is free during opening hours (Stiftung Planetarium Berlin).
- Pair it with a walk along the Spree in Treptower Park.