The Kingdom of Cambodia is a constitutional monarchy of Southeast Asia with a population of about 14 million people, mostly ethnic Khmer. The main religion is Buddhism. Its capital and largest city is Nom Pen. The country is bordered to the west by Thailand, on the north by Laos, east by Vietnam and the south by the Gulf of Thailand. It is traversed by the Mekong River. Angkor Wat is the biggest tourist attraction of Cambodia. Angkor Wat, the temple is also the largest and best preserved heritage architectures protected by those who make up the settlement of Angkor. It is considered the largest religious structure ever built, and one of the most important archaeological treasures in the world. Located 5.5 km north of the present Siem Reap, in the eponymous province of Cambodia, Angkor Wat is part of the complex of temples built in the area of Angkor, the ancient capital of Khmer empire during its heyday, between the ages IX and XV. Angkor covers an area about 200 km ², although recent studies discuss a possible extension of 3,000 km ² and a population of half a million inhabitants, which would make it the largest preindustrial settlement of humanity (Michael, 2003). There is also a place for “beach” holiday in the south, near the town of Sihanoukville. Every year this country is visited by about 2.5 million tourists.