Medieval city of Visby, Gotland: view of the Ringmuren from the roof of the Domkyrkan

NOTES: Visby is the former Hanseatic post on Gotland and remains the only city on the island. It is one of the best-preserved medieval cities in Sweden. The Ringmuren (ring wall), built from c.1250, is 3.4 km long and is almost complete with 27 towers remaining out of 29. Construction on the Cathedral (Domkyrkan S:ta Maria) also began in the mid-13th century.