Dun Carloway is a 2000-year-old, dry-stone broch, perched defiantly above a beautiful loch with views to the mountains of North Harris. The site is clearly signposted along a minor road off the A858, a mile southwest of Carloway village. One of the best-preserved brochs in Scotland, its double walls (with internal staircase) still stand to a height of 9m and testify to the engineering skills of its Iron Age architects.