On a small hill next to the Nestani (Tsipiana) village stand the remains of the Acropolis of the Ancient Nostia or Nostea or Nestani. The town was one of the Municipalities of Ancient Mantineia.
The archaeological site includes remains of a Pelasgian wall and part of a tower. The wall's enclosure had at times towers and encompassed an area of six stremmata. The gate of the town's acropolis can still be seen. At the top of the hill there are five blocks of stone which are speculated to be the foundations of a palace. The town bloomed from the 5th to the 3rd century B.C. The wall's remains at the gate are dated from 465 B.C.
The archaeological site is today open for visitors.