Muay Thai is Thailand's national sport, but shopping might be its national pastime, and Bangkok has some of the best in Southeast Asia. You'll find high-end designers, international brands, and Thai labels at megamalls like Siam Paragon, Central World, and Gaysorn Plaza. For local wares, handicrafts, and souvenirs stroll the thousands of stalls at Chatuchak Weekend Market and Talat Rot Fai.