This remarkable relic of the Ice Age includes glacier-polished rock, erratic boulders dropped by the retreating ice, and 32 potholes formed at the base of waterfalls of melting glacial ice. 

Some of them are huge, and their formation is demonstrated by a working model of the process. Exhibits also show how the changing climate affects the earth. Higher up are an early climbers' hut and a lookout tower.

 In the museum are relief maps of Switzerland, groups of alpine animals, rock specimens, and historic rooms. Not at all related to the rest of the museum but great fun, especially for children, is the labyrinth of mirrors.