Turku Castle

Turku Castle (Finnish: Turun linna, Swedish: Åbo slott) is a medieval building in the city of Turku in Finland. Together with Turku Cathedral, the castle is one of the oldest buildings still in use in Finland. Turku Castle is the largest surviving medieval building in Finland. It was founded in the late 13th century and stands on the banks of the Aura River.

• http://en.wikipedia.org/wiki/Turku Castle