The Mysterious Green Stone of Hattusa | Ancient Architects

Located in modern Turkey, Hattusa was the ancient capital of the Hittite Empire in the late Bronze Age, which ended abruptly and somewhat mysteriously in the 12th century BC.

At its peak the city covered nearly two square kilometres, surrounded by massive walls. There was a royal residence, elaborate gateways, four temples, porticoed courtyards, secular building and residential structures.