Turku Castle, Guide to the Main Castle. Turku Provincial
Museum. Translated by Christopher Grapes. Jyväskylä: Gummerus
Kirjapaino Oy, 1996. ISBN 951-595-022-8.
This over 700-year-old castle is the largest surviving medieval building in Finland. Once the castle of Swedish Kings, it now houses a museum, which demonstrates the history of the Turku Region.