Hailed by The Guardian and other publications as “a real-life Indiana Jones,” Slovenian archaeologist Ivan Šprajc has been mapping out previously unknown Mayan sites in Mexico’s Yucatán Peninsula since 1996. Most recently, he was credited with the discovery of the Chactún and Lagunita sites in 2013 and 2014, respectively, helping to fill in what was previously one of the largest voids in modern knowledge of the ancient Maya landscape: the 2,800-square-mile Calakmul Biosphere Reser...