Nearly all the attractions of Bern are easily accessible. The "Kindlifresserbrunnen" or the "Zytglogge" don't cost you a thing and are always there. Whereas you should really plan your visits are the Bundeshaus and the Münster(turm). Having a view over Bern is always nice, but if you're lucky enough to pick good weather, go up there shortly before it closes. You'll have a fantastic golden view over the elder part of the town and the Aare around the time of sunset.  By the way, nearly all the tourists have gone by then anyway. In the Bundeshaus of Switzerland, you're offered guided tours. But watch out, these do not always take place at the same time. For exact and actualised information, visit: http://www.berninfo.com/de/navpage.cfm?category=SightsBET&id=32446&subcat=AttractionsBET