Description: The Ringwall (started 12th century) that surrounds Visby, Sweden, the only city on Gotland, the largest island in the Baltic Sea, and a 3-hour ferry ride to the mainland. Visby was an important medieval city and has been named a UNESCO World Heritage Site. May 31, 2008. Photography ©2008 Michael Lichter.
Copyright: ©2008 Michael Lichter