Until recently, Angkor Wat has always been Cambodia’s biggest draw. Situated in Siem Reap, the sprawling temple complex, a UNESCO World Heritage Site, is one of the largest religious monuments is the world and was originally built in the 12th century as a Hindu temple. Traditionally, travelers tack on a few days in Siem Reap to see the impressive site as part of a larger trip to Southeast Asia, according to Dianna Upton, a Cambodia expert at Travel Beyond, a luxury travel agency in Wayzata, Minnesota. “It’s always been included as part of a circuit of countries to hit in the region,” she says.