You don't have to have a strong religious faith to appreciate the calming atmosphere of Visby Cathedral. Ask when the next service starts or when you can go for a wander through.
Guess what? It's free to visit Visby Cathedral in Innerstaden. But your adventures don't have to end at this principal church. Close-by attractions like DBWs Botanical Garden, Gotlands Art Museum and Visby Ringmur also make for an enjoyable day out.