The "Pyramid" of HellenikonAt the South-eastern edge of the plain of Argolid, near the springs of the Erasinos river (nowadays 'Kephalari') and on the main arterial road which in antiquity lead from Argos to Tegea and the rest of Arcadia and Kynouria, there is a small fort at present known as the 'pyramid' of Hellenikon.
According to evidence from the excavations and the typical features of the structure which dates to the end of the 4th century B.C. and not to the prehistoric period, as some scientists have been recently willing to demonstrate. During the later years of Antiquity, the "Pyramid" was considered as a burial monument , a "polyandreion", while nowadays there is no doubt that it was a fort of the type of small strong-holds which controlled the arterial roads and which are known from other regions of the Argolid.