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Si Thep Historical Park
Si Thep Historical Park is an archaeological park in Si Thep District, Phetchabun Province, central Thailand, preserving the ancient town of Si Thep. Encompassing a moated inner and outer city with Dvaravati-era (6th-11th century) and later Khmer monuments, it features brick and laterite prangs, stupas and excavated remains. Inscribed as a UNESCO World Heritage Site in 2023, it is notable for its urban planning, religious architecture and evidence of early Southeast Asian cultural exchange.