Hidden in the cliffs on the Gower peninsula in South Wales is a cave sealed behind an 18-meter stone wall with no door and ill-matched windows. Believed to have been built in the 13th or 14th century as a shelter for domesticated pigeons, the cave would have held hundreds of pigeons in the day. Pigeons were an important source of food, providing meat and fresh eggs.

According to legend, this site was also used as a storehouse by powerful local brigand John Lucas and once had a secret tunnel that was used to move illegal contraband connecting it to the nearby salt house in Port Eynon. The word “culver” derives from the Old English word “culfre,” meaning pigeon.