On this evening tour, a guide dressed as a medieval night watchman leads the group through the Nikolaiviertel and old Berlin, telling legends and gruesome stories about places like the ruins of the Grey Monastery and the Gerichtslaube. It's a slightly spooky but memorable way to learn about the city's medieval history. The tour starts at 10 pm at St Nicholas' Church and takes about 1.5 hours.

Madame Tussauds Berlin has more than 100 wax figures of famous people from politics, history, music, film and sport. Students can pose for photos with them, and teachers usually join in. It's more fun than educational, but it can spark curiosity about some of the people on display. The museum is a short walk from the Brandenburg Gate, and a visit takes about 1.5 to 2 hours.