Star-gazers will enjoy the guided tours of this elegant early 20th century observatory, which is home to an enormous telescope of similar vintage. The tours, which cost CHF 15, last for around an hour and a half and lets you gaze at objects just visible in the sky. The tours take place in any weather, so wrapping up warmly is advisable.
Afterwards, pop down to the Jules Verne Panoramabar for cocktails and great city views. Entrance to the Observatory is by Deutsche Bank on Uraniastrasse 9.