Structure VIII at the Mayan ruins of Calakmul, Campeche, Mexico.

- Image ID: CBXJPD
Structure VIII at the Mayan ruins of Calakmul, Campeche, Mexico.
John Mitchell / Alamy Stock Photo
Image ID: CBXJPD
Calakmul is located in the 7,231.85 square km Calakmul Biosphere Reserve, which was established in 1989. Calakmul was made a UNESCO World Heritage Site in 2002.
Location: Calakmul, Campeche, Mexico