0 a prehistoric (= from an ancient time before there were written records) round stone tower in northern Scotland:
It's quite a good path over the cliff there, and the island with the broch is worth a visit.
There's quite a lot of the broch showing, too, almost the complete circle.
I want to work on Eilean na Roin - that's Seal Island, where the broch is.
I have been to see archaeological sites - Clickimmin Broch is one of the most remarkable in Britain.
A similar pattern has also been observed in broch doorway orientation.
The broch itself is visible from the mainland and may have served as a warning to potential invaders that the island was well protected.
Various hypotheses have been suggested as to the function of these structures but before these are explored, it is necessary to define what exactly is meant by the term 'broch'.
The construction of brochs, with their double-skinned drystone walls made it possible to build tall yet comparatively lightweight structures.
