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Speaking of which, fun fact for those who don't know, Switzerland has a lot of trolleybus systems, which is uncommon in western Europe. 12 systems in all, this number is only superseded by Italy's 14 (although many of those are in quite bad shape).
The majority of cities of some size have a trolleybus system, except Basel which dismantled theirs to focus on the trams instead.
Here's a map showing all the places which have a trolleybus system in Switzerland. Blue pin indicates trolleybus system, purple indicates trolleybus and tram system (metro in the case of Lausanne).