Carn Euny Iron Age Settlement Fogou, Penzance, Cornwall, 28.12.17.
One of Carn Euny’s best features is the substantial underground fogou that runs the length of two roundhouses in the centre of the village. The passageway has a clear entrance on both sides of the village plus a small tunnel as a side passage. Near the entrance to the fogou is also a substantial round side chamber with a small stone alcove. It is unclear what the exact purpose of the fogou was; perhaps a refuge, a storage space, a secure area? When I visited it part of the length of the main passage was filled with water; I waded through but it was clear that the same problem may have blighted the space in 200BCE. Whatever it was used for, it was hugely atmospheric and original in design.