At the height of the Mayan empire 1,400 years ago, the city of Tikal in modern-day Guatemala was a bustling metropolis the size of London during the Middle Ages. But when the Spanish conquistadors ...

a few months before the 500-year anniversary of the battle that forced Hernan Cortes and his soldiers to temporarily flee the city on Jun 30, 1520. A day earlier, Aztec Emperor Moctezuma was ...