This guided tour of the Archenhold Observatory, Germany's oldest public observatory, explores the world's longest movable refracting telescope and lets visitors feel a real meteorite. The tour covers what makes a black hole special and how the sky was measured in the past, leading to today's knowledge. Visitors can ask questions and follow the traces of Albert Einstein in the Einstein Hall. Duration: 60 minutes; recommended from age 12 (all school grades).

Details can change — check the event’s website before you go.