European Heritage Days Switzerland in Multiple cities
For two days each September, Switzerland opens historic buildings that are normally closed to the public as part of the pan-European Heritage Days initiative coordinated across Council of Europe member states. Sites vary by canton and range from church towers to industrial archives, usually with guided tours led by the people who maintain them. There is no central venue, so visitors need to check a specific town's program in advance.
Switzerland's participation in the pan-European Heritage Days initiative gives the public two days each September to walk into buildings that are normally locked, staff-only or simply overlooked.