Phimai National Museum is in Phimai District, Nakhon Ratchasima. It is a museum with collected archaeological evidence and antiques discovered in the lower northeastern civilization region as tools, ornaments, and architectural parts such as lintels, porter, etc. There are three parts of the museum. Part 1, the upper exhibition building, the learning resource of the development of society in the lower northeastern region. Part 2, ground floor building with the exhibition of artistic Khmer antiques in the lower northeastern region. Part 3, hall building where visitors can see the beauty of antiques including components of sandstone architecture such as lintels, colonnette, the leave-shaped of stone columns, lotus-shaped on the tops of castles, etc.