Trondenes Church, the Worlds northernmost Medieval stone church

Trondenes Church is the northernmost Medieval stone church of Norway, situated in Harstad. Though frequently mentioned as a 13th century church, dating based on dendrochronology places its completion shortly after 1434.

Compared to the other ten north Norwegian Medieval stone churches,
Trondenes church is well preserved and the exterior is close to the original state. The nave is 22.6 meters long and the chancel is 13.5 meters, making it one of the largest medieval churches of rural Norway. In the late Medieval period, Trondenes served as the main church centre of Northern Norway.

http://en.wikipedia.org/wiki/Trondenes_Church