September 28, 2021 In Guatemala, archaeologists uncover hidden neighborhood in ancient Maya city . by Brown University A recent lidar analysis revealed that an area once assumed to be natural hills, center, near Tikal's Lost World complex, right, is actually an 1,800-year-old ruined citadel. Credit: Thomas Garrison/PACUNAM Scientists have been excavating the ruins of Tikal, an ancient Maya city in modern-day Guatemala, since the 1950s—and thanks to those many decades s...