Si Sa Ket province is located in the southern portion of Thailand’s Northeastern Isan region. As Si Sa Ket borders Cambodia there are a number of Khmer ruins throughout the region and the history of the provincial capital is believed to date back to the Angkorian era. The greatest of these ruins in the region, and one of the most spectacular Khmer temples ever constructed, is Preah Vihear. Phra Vihan, as it is referred to in Thai, is a temple that was constructed atop a cliffside escarpment that lies across the border in Cambodia but is far more accessible as a day trip from Si Sa Ket, where Prasat Khao Phra Wihan National Park contains a number of decent sights prior to crossing the border.In addition to architectural diversity, Si Sa Ket contains many ethnic tribes, including Suay, Lao, Khmer, and Yer that have settled in the province over the centuries. Old town Si Sa Ket, formerly known as Muang Kukhan, was located at Ban Prasat Si Liam Dong Lamduan, in present Tambon Duan Yai, Amphoe Wang Hin, but was relocated to its present location during the reign of King Rama V, around one hundred years ago.