But the Spanish who arrived in the 16th century searching for gold and silver destroyed most of their cities and the human population. One of the most complete set of Mayan buildings that remain ...

Now named Valeriana, this lost metropolis is believed to be one of the densest Mayan cities ever discovered. At its peak (between 740 and 850 A.D.), it may have housed anywhere from 30,000 to ...

Over the past 15 years, as advances in technology have lowered costs, lidar has effectively remade modern archaeology, leading to the discovery of lost cities from Central America to Southeast Asia.