Østerlars Church

Østerlars Church is a historic building located just north of the village of Østerlars, 5 kilometres south of Gudhjem on the island of Bornholm, Denmark. It is the largest and, possibly, the oldest of the island's four round churches.
Built around 1160, it consists of an apse, an oval chancel, a large round nave and has three storeys. There is evidence the church was once fortified, the top storey serving as an open shooting gallery.
The church is dedicated to St Lawrence .
The building is one of Denmark's oldest Romanesque churches. On the basis of coins dated 1157 found in the floor, the date of construction was probably around 1160.
The fieldstone wall stands on foundations of Bornholm limestone. The double-arched apse bears similarities to that in Lund Cathedral. The round nave has an external diameter of 16 meters. In its centre there is a large round hollow column, six meters wide. An opening leads into a small room, known as the oven, inside the column.

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