The history of Bennebols Ironworks started in 1683, when Gustaf Otto Stenbock built there a blast furnace.A small ironworks village grew up to one of Uppland's many Walloon ironworks villages. Iron production ceased in 1884, but the village environment lives on, with a bailiff's residence that includes the ironworks office in one of the wings, a schoolhouse, a row of stables, remains of a charcoal house, a blast furnace, a roasting oven, and a town street lined with residences and barns.
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.