The Kingdom of Thailand in Southeast Asia, formerly known as Siam, is increasingly popular with sun-seekers and those looking for an exotic holiday destination. The capital city is Bangkok. Approximately 10 million people are packed into this vibrant city. The second city, Chiang Mai, is completely different with over 300 historic Buddhist temples set around the walled city. The beaches and diving along the coast of southern Thailand are some of the most beautiful in the world.