| http://www.w3.org/ns/prov#value | - While the reserve is a paradise for bird watching, the site itself is a hotbed of stelae, or stone monuments, often in the form of a high-relief sculpture, that were popular and characteristic of the Mayan civilization. 117 stelae have been discovered at Calakmul so far, more than any other Mayan site, and all of them from the Classic period. 2.
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