Treasury of Atreus
The Treasury of Atreus or Tomb of Agamemnon is an impressive "tholos" tomb at Mycenae, Greece (on the Panagitsa Hill) constructed around 1250 BCE. The lintel stone above the doorway weighs 120 tons. The tomb was used for an unknown period of time.
A. D. F. Hamlin College Histories of Art History of Architecture (New York, NY: Longmans, Green, and Co., 1915)
Courtesy the private collection of Roy Winkelman