Germany's only floating church in Rothenburgsort.
© OpenStreetMap contributors
The world's largest model railway layout. The panoramas include parts of Hamburg, the Alps, the American west, South America, and a Scandinavian exhibit which features automated ships on a body of water. It also has an airport exhibit with automated planes which taxi and fly, even having simulated delays to mimic a real-world airport. Advance booking by at least two weeks strongly recommended due to high demand.