Prasat Puai Noi Ruins
Upper Esaan region is far from the center of the ancient Khmer area, but there are Khmer architectural evidences in many provinces of upper Esaan region. These evidences show that ancient Khmer culture influenced upper Esaan culture and covered almost all areas of Esaan. Considering architectural design, the ancient Khmer architecture in upper Esaan are smaller buildings compared to lower Esaan where bigger ruins or castles are found. However, the ruins in upper Esaan also contains complete architectural composition following religious faith and consists of beautiful sculptures and carving similar to the bigger architecture.