Bamberg's old town hall sits on an island in the middle of the river — the city has been doing things differently since 902 AD. This app-led scavenger hunt takes you through Bamberg's UNESCO-listed centre on foot, with phone-based riddles leading from one landmark to the next. No guide, no fixed start time. • Solve clues at the Altes Rathaus, the Domplatz, and the Grüner Markt — three landmarks at the heart of one of Germany's...