Behind Visby’s locked doors. Visby is a fantastic town with medieval houses, church ruins and ring-walled towers. Imagine getting behind the locked doors and seeing these buildings from the inside. Now there is that opportunity! Gotlands Museum holds the keys to the world heritage city of Visby. On this walk we show some of Visby’s most exciting historical buildings and ruins. Here you get the opportunity to follow us into exciting worlds where time has stood still.