The temple’s most noticeable structure, the 50 meter high golden chedi is the most important structure of the temple, since it enshrines sacred relics. The chedi sits on an elevated base with a lower and upper terrace. The lower terrace contains depictions of celestial beings from Hindu mythology. At each of the corners of the terrace is a small prang (Khmer style tower) enshrining an image of the Buddha in the Abhaya (dispelling fear) mudra.
The hollow chedi is closed to the public, except on Wat Khao Phansa day, usually in July. Inside are five small golden chedis that contain sacred relics. The central one is set on a stone base. On its four sides are carvings of four of the most important events in the life of the Buddha, namely birth, enlightenment, first sermon at the deer park in Sarnath and passing into Nirvana.