The 3000-year-old site of Aguada Fénix is the oldest and largest Mayan monument to be discovered and dates from a time before the society had a powerful ruling class
Source:
https://www.newscientist.com/article/2245181-weve-just-found-the-largest-and-oldest-mayan-monument-yet/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home