Ek Balam was inhabited as early as 400 B.C. and up to Colonial times. The name means "black or star jaguar".
The Acropolis temple is more than twice the size of the Castle at Chichen Itza with tunnels inside the Acropolis leading to tombs. There are life size statues similar to ones found in Palenque.
There is a defensive wall around this central area, an astrological observatory, ballcourt, 5 Sacbe's, gateway arch and 2 cenotes.