The Bollerup estate was first time mentioned in 1130. The castle was built in the end of 15th century. The present living quarters were built in the 1840s. It lies on an islet and is surrounded by a moat.
Bollerup has been owned by several families like Thott, Gjöe and Rantzau. Today it houses the Bollerup Agricultural Institute. Guided tours of the fort, grounds, stables and church are available during the summer.
References:The Broch of Gurness is an Iron Age broch village. Settlement here began sometime between 500 and 200 BC. At the centre of the settlement is a stone tower or broch, which once probably reached a height of around 10 metres. Its interior is divided into sections by upright slabs. The tower features two skins of drystone walls, with stone-floored galleries in between. These are accessed by steps. Stone ledges suggest that there was once an upper storey with a timber floor. The roof would have been thatched, surrounded by a wall walk linked by stairs to the ground floor. The broch features two hearths and a subterranean stone cistern with steps leading down into it. It is thought to have some religious significance, relating to an Iron Age cult of the underground.
The remains of the central tower are up to 3.6 metres high, and the stone walls are up to 4.1 metres thick.