Tutankhamun's burial mask is made of gold and precious stones. Mark Fischer via Wikimedia Commons under CC BY-SA 2.0 The ...

Just steps from the center of Tikal, a 2,400-year-old Maya city in the heart of modern-day Guatemala, a global team of researchers has unearthed a buried altar that could unlock the secrets of a ...

It’s increasingly clear that this was an extraordinary period of turbulence at Tikal,” said Stephen Houston, who co-authored ...