A world of treasures Cambodia today occupies only a small corner of the former Khmer Empire, with the surface area of 181,035 square kilometers, and 12 million inhabitants, 90 percent of whom are Khmer and the remaining 10% are Vietnamese, Cham, Chinese and hill tribes. 95% of Cambodians are Theravada Buddhist. Being the former Empire of Southeast Asia, Cambodia is a highly civilize nation, a nation of long history and rich culture. Over a thousand of magnificent ancient stone temples decorated with fine bas relief are found in almost every part of the country.