Mexico's Most Amazing Ruins

Hilltop fortresses, riverfront temples, and pyramids that peek out of steamy jungles: Mexico's landscape is dotted with historical sites that span many centuries. Though many were built by the Mayans and the Aztecs, some were the work of ancient peoples whose secrets have yet to be unlocked. Dive into Mexico's unique history by checking out our picks for the country's 10 best archaeological treasures.—Mark Sullivan