"Calakmul is an ancient Mayan city located in the Campeche jungle at the base of the Yucatan Peninsula. It is the largest protected forest reserve in Mexico and is an underrated attraction. The city comprises various stone pyramids and other structures, emitting mystical energy similar to other ancient Mayan sites like Chichen Itza, but it is about 1,000 years older. It is described as much more than just an archaeological site, with trails for exploring nature and culture, and is a paradise for birdwatchers. Calakmul is a UNESCO World Heritage Site, aiding in the understanding of Mayan culture." - Travel + Leisure Editors