Long holding the title of Southeast Asia's most popular vacation spot, Thailand is paradise-by-numbers with its tropical islands, lush jungle, and sun-bleached sands. But it's not just the beaches that bring travelers back time and time again—Thailand's most enduring asset is its welcoming people. The capital of Bangkok, with its bustling streets, colorful night market, beautiful Buddhist temples, and the Grand Palace complex (home to the sacred Temple of the Emerald Buddha), is the obvious starting point. Just outside of the city, the ancient Siamese capital of Ayutthaya is a UNESCO World Heritage Site, while the Damnoen Saduak floating market offers a fascinating glimpse into traditional Thai life. In southern Thailand, beach lovers can set sail for Koh Samui in the Gulf of Thailand, where the surrounding islands offer ample opportunities for snorkeling and scuba diving. Over on the Andaman Sea Coast, the sandy beaches and golden temples of Phuket are the precursor to the dramatic landscapes of Phang Nga Bay, James Bond Island, and the Phi Phi islands, where The Beach was filmed. Far from the beaches of the south, the sweeping highlands of northern Thailand mark out the borders with Laos and Myanmar. Chiang Mai and Chiang Rai are the main destinations, where adventurous travelers can try white-water rafting, observe elephants, or join a trekking tour to explore the remote hill tribe villages.