Terpni
Terpni is a small town in the Serres regional unit, Greece. Since the 2011 local government reform it is a municipal unit of the municipality of Visaltia, whose the seat is in Nigrita. It has a population of 2,169 inhabitants and until 1928 was named Tserpista.History
A few kilometers southwest of Terpni, on the hill named Palaiokastro, are preserved the ruins of an ancient settlement identified with the Roman waystation Graero, known from the Roman itineraries.
From a Greek inscription of Roman imperial times, we are informed that this settlement had the size of a city with all its known architectural monuments.