Discover the easiest way to see the sights of tallinn a city sightseeing hop on hop off tour allows you to see all the sights of the city at your leisure and in a comfortable secure environment with full commentary provided youll see tallinns historical and modern attractions including vabaduse valjak freedom square the giant matchbox of hotel viru the former intourist flagship and the notorious den of cold war intrigue tickets are valid for 1 or 2 days