Phra That Phu Pek is a large Khmer castle, built of sandstone Ruenthat is located on a raised base. In the front of the castle, there are stacked stone bases protruding like crosses, called Gopura, slightly higher than the base of the base house. Around the area found a pond. Ancient water and stone extraction to build the castle The front of the castle building faces east and has 491 steps of limestone stairs on the top of the mountain. According to legend, it is assumed that it was built in the same period as Phra That Narai Chengweeng. In addition, Phra That Phu Phek is also used as a place to prove the belief in the end of the world in late 2012. with coordinates on the same Meridian as Bayon Temple in Cambodia. Caution 1. Should not write the place 2. Do not climb objects in the place to take pictures.