According to a notice board outside the church, the nave and south porch of the Rødven Stave Church date from the 14th century, the crucifix dates from the 13th century and the pulpit from 1712. Inside are an ornately carved crucifix and pulpit. The church is a Møre-type stave church due to its structure and the exterior support posts that brace the walls. During an archeological survey in 1962-1963, marks were found from posts for an older building on the same location.
The church is no longer actively used and it has been owned by the Society for the Preservation of Norwegian Ancient Monuments since 1907, when a new Rødven Church was built next to this church building. Although it is a museum, it does have one worship service each year on Olsok, the eve of St. Olav's Day.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.