National Geographic on the Crystal Skulls

National Geographic has an interesting article about the real Crystal Skulls on their website.

- Crystal Skulls Fuel Controversy, Fascination
The famed crystal skulls of ancient Mesoamerica have been a source of mystery and controversy for decades. The handful of known skulls have defied even the most advanced scientific efforts to determine who made them, when, and most puzzling, how. This specimen, owned by the British Museum in London, was originally thought to have been made by the Aztec of Mexico but was later determined to be a fake.
National Geographic
Photograph by AFP/Getty Images

(via Boing Boing)