Lubaantun, which lies beyond the village of San Pedro Columbia, is a Late Classic site discovered in 1924 by German archaeologist Thomas Gann, who gave it a name meaning "place of fallen stones." Lubaantun must have been an awe-inspiring sight: on top of a conical hill, with views to the sea in one direction and the Maya Mountains in the other, its stepped layers of white-plaster stone would have towered above the jungle like a wedding cake. No one knows exactly what function the structures served, but the wealth of miniature masks and whistles found suggests it was a center of ceramic production. The trio of ball courts and the central plaza with tiered seating for 10,000 spectators seems like a Maya Madison Square Garden. There's a small visitor center at the site. In the last century Lubaantun became the scene of what is allegedly the biggest hoax in modern archaeology. After it was excavated in the 1920s, a British adventurer named F. A. Mitchell-Hedges claimed to have stumbled on what became known as the Crystal Skull. Mitchell-Hedges described the incident in a potboiler, Danger, My Ally, in 1951. According to the book, the Crystal Skull was found under an altar at Lubaantun by his daughter Anna. Mitchell-Hedges portrayed himself as a serious archaeologist and explorer: in truth, he was a magazine hack who was later exposed in England as an adventurer. The Crystal Skull made good copy; also known as the Skull of Doom, it was supposedly used by Mayan high priests to zap anyone they didn't care for. Mitchell-Hedges claimed it was 3,600 years old and had taken 150 years to fashion by rubbing a block of pure rock crystal with sand. A similar skull, in the possession of the British Museum, shows signs of having been manufactured with a dentist's drill. However, some archeologists believe the crystal skull may be authentic, possibly of Aztec origin. Anna Mitchell-Hedges, who died in 2007, adamantly refused to allow the Crystal Skull to be tested and denied all requests by the Belizean government to return it. It is now owned by her caregiver, Bill Homann. Most tour operators in PG can arrange trips to Lubaantun, or you can visit by rental car.