Tepe Sialk (Sialk hills) one of the most important prehistoric excavations in Iran. The archaeological complex known as Tepe Sialk consists of two hills, about half a kilometer apart, and two cemeteries, known as A and B. The excavators have distinguished six main phases of occupation. This ancient hill is located 3 km to the south of Kashan. Studying the clay dishes discovered in this area revealed that its civilization dates back to 5500 BC. Other objects discovered in the area include clay tablets belonging to Elamite era. Near the central hill of Sialk, two graveyards, conventionally called A and B, have been discovered. The objects found from the excavations include iron weapons, swords, lances and piped dishes. The objects found in graveyard A date back to 2000 years BC. and those in graveyard B date back to early first millennium or late second millennium BC.