This 80-year old mannequin is so lifelike it is believed to be an embalmed corpse.

Take a dip beneath the stalactites in this amazing cenote.

The ruins of an abandoned church mingle with the graves at Oaxaca’s General Cemetery.

Three sinkholes filled with warm, crystal-clear water reached by a horse-driven cart on an old train track through the jungle.

The singular ruins of a mysterious lost city.

A flooded Mexican cave that hides a river beneath the water.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Mexico's astounding mummy museum with "the world's smallest mummy."

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

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

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Twelve natural mummies are displayed in the crypt of this former monastery school.

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

Extraordinary sculpture garden created by an eccentric English poet.

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

An Aztec snake god has taken the material form of an apartment complex.

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

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

A volcanic fissure over two miles long and up to 70 feet deep.