The pews date from 1945 , and a carillon in the south-eastern tower from 1960 . A number of memorial plaques and epitaphs adorn the walls of the cathedral , notably one in remembrance of the sinking of a Danish-Lübeck fleet outside Visby in 1566 and one in remembrance of the sinking of the Swedish passenger ship SS '' Hansa '' in 1944 by a Soviet submarine . There are also memorials of the 2004 Indian Ocean earthquake and tsunami and Linate Airport disaster , which both claimed Gotland lives
Linate Airport disaster
Linate Airport disaster
Visby Cathedral