“Saint Katarina (Saint Karin) medieval church ruin in Visby on the island of Gotland. Interior

“Saint Katarina (Saint Karin) medieval church ruin in Visby on the island of Gotland. Interior towards the chancel.Watercoloured drawing by Lars Cedergren, from 1816-1830. The Hanseatic town of Visby is today a UNESCO World Heritage.“ Source.