Dun Carloway

Dun Carloway is one of Scotland's best-preserved broch towers, standing on a rocky outcrop on the west coast of the Isle of Lewis. Probably built around 200 BC, it served as a residence and status symbol for a local chief. The double-skinned walls still reach 9 metres on the east side, with an external diameter of 14.3 metres and internal courtyard of 7.4 metres. Architectural features include two interior gallery tiers, a ground-level guard cell, an internal stairway, and a stone scarcement ledge that supported upper floors. Remarkably, the broch saw intermittent use for nearly two millennia -- excavations found peat-ovens from 400-700 AD, and a family reportedly lived within its walls as late as the 1870s. In state management since 1887, it is now cared for by Historic Environment Scotland.