Today we will depart for Buriram where you can visit Prasat Phanom Rung, one of the best-preserved Khmer remains in Thailand. Visit the site which is accessed by a large staircase, then a few kilometers away, visit Muang Tham, another Khmer building located near a large artificial lake of time dug to be a water reserve for the community. In the center, two laterite walls, each encompassing four gopuras with superb baluster windows, protect the sacred buildings. You will notice the refined ornamentation of lintels, small columns and door jambs, in harmony with the style of Baphuon and Khleang. The inner courtyard includes five brick towers and two libraries, while the central prang (prasat) contains elements symbolizing Mount Kailas, the home of the god Shiva. Have free lunch at your own account. Continue the trip to Surin and visit of its national museum unknown and very interesting (closed Monday and Tuesday). It presents many pieces retracing the history of the region since prehistoric times, and gives information on the multitude of ethnicities that live there today: The Khmer (heiress minority, often unknowingly, a people who possessed Southeast Asia to India 1000 years ago), the Suays and Laos, each with a language, traditional clothes and distinct customs. Overnight in Surin.