The Sanctuary of Truth is an unfinished Hindu-Buddhist temple and museum in Pattaya, Thailand. It was designed by the Thai businessman Lek Viriyaphan in the Ayutthaya style. The building is notably constructed entirely out of wood, specifically Mai Deang, Mai Takien, Mai Panchart, and Teak, and it contains only wood-carved idols and sculptures. Construction first began on the Sanctuary of Truth in 1981 and continues as of 2020, though visitors are permitted inside with hard hats. Located on 13 hectares of land, the temple houses an internal space of 2,115 m², with the tallest spire reaching to 105 m.