Prasat Phu Phek is an ancient site built from sandstone quarried nearby. The Prasat is characterised by a protruding terrace. The entrance is to the east. Architecturally, Prasat Phu Phek is influenced by the Bapuan Angkor Wat style between the 11th and 12th Centuries.
The prasat is located on a mountain top above the temple Phra That Phu Phek and is accessed by 491 steps. Views from the ruin are amazing.