Rennibister_Earth_House
Rennibister Earth House is an Iron Age underground structure known as a souterrain. It is located on the Mainland of Orkney, in Scotland. The monument was discovered in 1926 when a threshing machine caused the roof to collapse. During excavation, the skeletal remains of six adults and twelve children were uncovered. Historic Environment Scotland established the site as a scheduled monument in 1928.