This popular vacation spot is located in Thailand's northern mountains. Many historic temples can be found in this stunning area. The Wat Phra Sing temple was built in the 14th century and is one of the area's most important Buddhist shrines. Each year in April, the most talked about Songkran Festival, which celebrates the Thai New Year, takes place in Chiang Mai. (PORNCHAI KITTIWONGSAKUL—AFP/GETTY IMAGES)