Archaeologists earlier discovered that the El Castillo pyramid of Chichén Itzá is built on an ancient cenote (water-bearing sinkhole or underground lake). Now, they’ve found a nearby cave with hundreds of untouched artifacts. The network of caves is huge – last year, researchers with the Great Maya Aquifer Project mapped caves that ended up connecting to the already-known system, creating the world’s largest underwater cave system. Imagine all the yet-to-be-discovered archaeological treasures in these caves!
