Located at the confluence of the Nemunas and Neris rivers, this impressive brick castle was built in the 14th century at the beginning of the Teutonic attacks. Unique for its double walls and the surrounding tunnel, many events and legends of Lithuanian history are attributed to it. Today, the castle is home to various temporary and permanent programs all year round. Join educational trips and exhibitions, mould a stove tile, and try your knowledge with the Castle Quiz. Just opposite the castle, St. George the Martyr Church is also worth a visit, for it is an important landmark of Roman Catholicism.

The Åland Museum (history and ethnography) and Åland Konstmuseum (art museum) are both housed under the same roof. The permanent culture and history exhibition on display at the Åland Museum gives excellent insight into the history of the province. Art from Åland is displayed at the Konstmuseum, and there are always a few temporary exhibitions. The discovery of world's oldest champagne in the region is highlighted through an exhibition entitled “Champagnegaleasen” (the champagne schooner).

Åland offers world class wreck diving. More than 500 ships are known to have been wrecked due to the difficulties of navigating in the archipelago. The unique water climate contributes to preservation of old wood structures, and steel hulls corrode slowly. In the summer of 2010, a fascinating discovery was made in the Åland archipelago: the world’s oldest champagne and beer were found aboard a 200 years old schooner. Accompany professional diving guides and experience Åland's underwater treasures. Every year new shipwrecks are discovered. If you fancy taking up diving, follow a diving course on Åland. Basic and further training is offered within the NAUI training system.