The Sukhothai Kingdom was a post-classical Siamese kingdom in Mainland Southeast Asia surrounding the ancient capital city of Sukhothai in present-day north-central Thailand. It evolved from a trading
Wat Si Sawai at the Sukhothai Historical Park
Ancient Thais (clothing and hairstyle) in the Sukhothai era found on the Wat Si Chum stone.
A Māravijaya Buddha from Sukhothai, dated to the second half of the 13th century, at the Walters Art Museum.
The Ram Khamhaeng Inscription at the Bangkok National Museum
The Mahidharapura Kingdoms were a group of ancient political entities under the control of the Mahidharapura dynasty from the 600s to the 17th century in the present-day Nakhon Ratchasima and Buriram
Prasat Phimai, the most well-known ancient temple in the Phimai region, completed around the 11th–12th century.
Prasat Phanom Rung, completed in the 13th century by Mahidharapura's king, Narendraditya.