See all Attractions in Xunantunich Xunantunich for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping El Castillo About El Castillo is the tallest building in Xunantunich. It stands 40m (131') tall, with a 360° view at the top of jungle, ruins, and Guatemala. Add to Wish List