From the "Elements of Architecture: Dolmen and Passage Grave" section of the "Prehistory and Prehistoric Art in Europe" chapter (Chapter 1). Dolmen elements highlighted are: dolmen, capstones, cairn. Passage grave elements...
“The andron is roughly 5 by 5.8 metres [meters] (16 1/2 by 19 feet). The raised platform round the edge of the room is 82 centimetres [centimeters] wide, and was painted bright yellow. The platform has space for a maximum of nine couches. There...