Nakhon Ratchasima (นครราชสีมา), usually referred to as Khorat (โคราช) or, more commonly Korat, is the largest city in the Isaan region of Thailand. Its proximity to Bangkok and Isaan make it a good jumping-off point for travellers who are heading into Isaan. It has excellent transport links to the rest of the country and beyond. Hwy 2 (Bangkok to Nong Khai) runs through the city, as does the northeast railway line which splits in the east of the city: one line runs up to Nong Khai and the other, to Ubon Ratchathani. There are buses which run to just about every city in the northern, northeastern, and eastern regions. You can even get buses to Vientiane in Laos and to the Cambodian border at Aranyaprathet.
The city itself has a population of around 165,000 (Nai Muang district, 2011), but the entire urban sprawl of the Nakhon Ratchasima metropolitan area (Muang Nakhon Ratchasima) has a population of 450,000. Despite the size of the city, it is not a favoured holiday destination for the average foreign traveller. Instead, visitors are more likely to base themselves in the city as they visit nearby tourist destinations such as Khao Yai National Park, Phimai, and Phanom Rung.