The Terrace of the Leper King is a remarkable late 12th-century structure located at the north end of the Terrace of the Elephants within Angkor Thom, the great Khmer capital. Named after a mysterious statue found here depicting a seated figure with deteriorating features, the terrace served as the royal cremation site for Khmer monarchs. The platform stands approximately 7 meters high and features two walls of extraordinary bas-reliefs depicting underworld scenes with nagas, garudas, demons, and mythological figures arranged in multiple tiers. Most remarkably, the terrace has a hidden inner wall, discovered during restoration, featuring even better-preserved carvings that were concealed when the terrace was expanded. Visitors can walk through a narrow corridor between these two walls, experiencing the eerie sensation of being surrounded by thousands of carved figures in what feels like a secret passage. The name derives from local legend, though historians believe the statue actually represents Yama, the Hindu god of death, appropriate for a cremation ground. This architectural marvel offers insights into Khmer beliefs about death and the afterlife.