Here’s what you’ll learn when you read this story:Researchers excavated an ancient Maya complex that spanned three cities in Guatemala. The ancient Maya civilization is known for its innovation: math, astronomy, calendars, written language, agriculture—you name it, and the people living during the Classic Maya period probably accomplished it. And Los Abuelos wasn’t just a place for researching the stars—it was also a ceremonial center. The other two cities, Petnal and Cambrayal, saw similar habitation and desertion patterns. However, unlike Los Abuelos, Petnal wasn’t a spiritual epicenter; in fact it was quite the opposite.