Prasat Ta Muen Thom is one of a cluster of three Khmer temples that stand near the Cambodian border, about 80km south of Surin. The complex was built in the 10th or 11th century as a rest stop on the ancient road between Angkor and Phimai — a sort of way-station offering medical care to travellers. The main tower is still largely intact, and the forest setting gives it a wilder, more atmospheric feel than the more accessible Prasat Sikhoraphum.
Getting there requires a car or motorbike, as the temples are well off the main road and there is no public transport. The journey passes through flat paddy fields and occasional sections of eucalyptus plantation before reaching the Dongrak escarpment, where the land drops sharply into Cambodia.