The Historic City of Ayutthaya is well-known from historical records. As one of the world’s largest cities of its time and a major political, economic and religious center, many visitors recorded facts about the city and their experiences there. The Siamese Royal Court also kept meticulous records; many were destroyed in the sack of the city, but some have remained and are an important source of authenticity. The same can be said for the testimony of works of art, wall painting, sculpture, and palm leaf manuscripts which survive from the period. Of particular note are the surviving mural paintings in the crypt of Wat Ratchaburana. Careful attention to the accurate interpretation of the ruins to the public for educational purposes also contributes to the property’s authenticity.