The component parts are the unique twin-town lay-out of the Ancient Town of Si Thep (component part 001), featuring Muang Nai (Inner Town) and Muang Nok (Outer Town) surrounded by moats; Khao Klang Nok ancient monument (component part 002), the largest surviving Dvaravati monument; and, the Khao Thamorrat Cave ancient monument (component part 003), a unique Mahayana Buddhist cave monastery that contains important examples of Dvaravati art and sculpture. Criterion (ii): The Ancient Town of Si Thep demonstrates important interchanges of cultural and religious traditions that originated in India and were adapted by the Dvaravati Empire between the 6th and 10th centuries. The Si Thep School of Art subsequently influenced the art and architecture of other areas in Thailand. Criterion (iii): The Ancient Town of Si Thep, the Khao Klang Nok ancient monument and the Khao Thamorrat Cave ancient monument bear an exceptional testimony to the Dvaravati culture and civilisation. AuthenticityThe authenticity of The Ancient Town of Si Thep is demonstrated by the richness of its archaeological structures and materials including rare and distinctive Dvaravati artistic elements.