Nakhon Ratchasima, also known as Khorat, is a northeastern province in Thailand. It's a major gateway to Isan, a mostly rural region distinguished by Lao cultural influences. The Phimai Historical Park preserves an 11th–12th-century walled temple, similar in style to Cambodia's Angkor Wat, built by the Khmer Empire. Khao Yai National Park is a mountainous area with tropical forest, waterfalls, elephants and birdlife.

After about a three-hour drive from Bangkok. Discover why Khao Yai National Park is listed as a UNESCO World Heritage Site.