Fougou

A fougou (also occasionally spelled fogou, fogue, or voogoo) is a type of subterranean, dry-stone structure found in Cornwall, in the United Kingdom. The word "fougou" is derived from the Cornish word for cave or tunnel, "fogo". Fougous are typically associated with Iron Age settlements, often found close to roundhouses and enclosed settlements known as rounds or "rounds".

Their purpose remains a subject of debate among archaeologists and historians. Hypotheses regarding their function include use as storage pits, ritual spaces, places of refuge, or root cellars. No definitive evidence firmly supports any single interpretation, and the lack of artifacts found within many fougous complicates understanding their intended use.

Typical features of a fougou include a narrow, stone-lined entrance leading to a longer, curving tunnel. Some fougous possess multiple tunnels and chambers. The construction involved corbelling (layering stones in such a way that they project inwards) to form the roof. The entrances were often deliberately concealed, potentially for defensive or security reasons. Fougous represent a significant feat of engineering and construction within their historical context, showcasing the skills and capabilities of the Iron Age people who built them. Their enigmatic nature continues to fascinate researchers and the public alike.