In this digital scavenger hunt, students work in small teams to help art dealer Siegfried Kath escape to the West. The story is based on real events. Using their smartphones, they solve puzzles and follow clues along the former Wall strip, learning what life in divided Berlin was like. The route takes about two hours, and teachers can play along or take a break in a café.

The visitor centre of the BND, Germany's foreign intelligence service, is on Habersaathstraße in Berlin-Mitte. School groups get a presentation and a tour of an interactive exhibition about what the BND does and how it is controlled by parliament. The 90-minute visits are popular and book up quickly.

From 1951 to 1990, Keibelstraße was a GDR police prison. Today, school classes can visit the original cells and learn in workshops and guided tours how pre-trial detention worked in the GDR and what it meant for those held there. A tour takes about 1.5 hours; with workshops, a visit can last up to six hours.

The glass dome on top of the Reichstag building is free to visit, but you need to register in advance. Students walk up the spiral ramp with an audio guide that explains in simple terms how parliament works and how laws are made, while enjoying the view over the city. The visit takes about 1.5 hours.

The DDR Museum opposite Berlin Cathedral shows what everyday life was like in East Germany. Students can sit in a Trabant driving simulator, open drawers and cupboards in a furnished prefab flat and try out lots of exhibits themselves. It's small and popular, so it can get crowded. A visit takes about two hours.