Vat Phou Champassak (UNESCO)

Home to Wat Phou, this temple is the most important attraction of South Laos; although it is not Laotian in origin. It was built by the Khmer with obvious comparisons to Siem Reap's Angkor Wat due to their similar architectural features and surrounding jungle overgrowth. Declared as a UNESCO World Heritage Site in 2002, the ruins are situated at the base of Mount Phu Phasak.