Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

A church dedicated to the Mexican skeleton saint.

Diego Rivera's massive tiled fountain and failed infrastructure project.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

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

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

This church, buried halfway in lava rock, is all that remains of a Mexican village destroyed by a volcano.

Extraordinary sculpture garden created by an eccentric English poet.

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

Inside this mountain lies several kilometers of breathtaking caves.

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

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

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

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

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

A massive underwater sinkhole made famous by Jacques Cousteau.

Right angles in the forests of Panama.

Sloth rehabilitation center in the jungle of Costa Rica.

A house built from trash known as the poor man's Hearst Castle.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.