The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

A tomb in the shape of a traditional Mexican hat and shawl for the father of modern rancheras.

Mexico's first public cable car soars over the congested streets outside Mexico City.

The stoutest tree in the world.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

The winter home of millions of migrating monarch butterflies.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

A church dedicated to the Mexican skeleton saint.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

Extraordinary sculpture garden created by an eccentric English poet.

An island filled with hundreds of hanging, decomposing, decapitated dolls.