Cosa
City / RuinsEuropeItalyc. 273 BCEEtruscan then Roman
Roman colony on the Tyrrhenian coast of Tuscany, founded 273 BCE on a pre-existing megalithic substrate. The polygonal foundation walls and acropolis platform pre-date the Roman period. Etruscan or pre-Etruscan origin contested.
Open in the Atlas map →Walkthrough videos (3)
Is the Cyclopean Wall of Cosa man-made?Ageless Rock
The Polygonal Walls of Cosa — TuscanyStone Riddles
Polygonal Site of Cosa in Tuscany from DroneStone Riddles