Pict’s house
In Scotland, a rude dwelling built often upon the side of a hill, so that parts of the house are excavated, while others are enclosed by walls of unhewn stones. The rude stonework was carried up in a conical or domical shape until the roof was completed; then the earth was heaped above it, or a layer of turf or peat was used to cover everything. These buildings were sometimes large, containing many chambers. (Jones, 1992)