The Khmer Empire had extended into northern Thailand by the sixth century, and some of the most famous ancient sites in that country include Phimai, Khorat, Prasat Sikhoraphum (between Surin and ...

In ancient Khmer culture, water reservoirs were typically rectangular (with a 1:2 ratio in nearly every case), while cities were more often surrounded by a square. Pailoplee said the team measured ...