The stone church of Reigi was built between 1800-1802 to replace the earlier wooden one built in the 1690. It was donated by Count Ungern- Sternberg, who had the church built in memory of his son Gustav who killed himself because he was heavily in debt to gamblers. Gustav is buried in the churchyard at Reigi.
On the top of the church steeple you can see a sculpture of a lily which was part of the coat-of-arms for the Ungern- Sternberg family. The church contains many beautiful works of art which are said to have been donated by the grateful survivors of shipwrecks near Hiiumaa's dangerous northwest coast. Some remodeling work was done in 1899 but the church still looks mostly as it did 200 years ago. The church is not open on a daily basis but it is still used for religious services so if you would like to get a look at the beautiful interior you are invited to attend a church service on Sunday.
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.