The Tower of Agios Petros in Andros
The Tower of Agios Petros in Andros, Hellenistic (4th-3rd century BC) is one of the best preserved Cyclades. It is cylindrical tower of 20m height. The diameter of its base is 9,40 m and it is made entirely of local slate. A preserved helical stairway leading to at least five floors inside.
The tower is built in a very privileged position, as it dominates the land of Gavrio and overlooks the sea with the ability to observe the ships of the port. Also around the monument there are copper (copper) mining facilities that operated until the beginning of the century. But there are indications that similar work was done in ancient times. Obviously the role of the monument was to control land and sea.