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

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

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

This fantastical house shaped like a seashell brings aquatic design to architecture.

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

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

A church dedicated to the Mexican skeleton saint.

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

A gargantuan crystal kingdom.

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

An extensive collection of ancient Egyptian artifacts and mummies.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

One of the largest trees of its kind in California.

Lemon Grove, California is known for its giant lemon...and mummified bodies.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

San Diego's most historic and haunted home.

A museum dedicated exclusively to the lore and history of ouija boards.

The headquarters in Salem doubles as an occult art gallery.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

A collection of full-size movie monsters opened to the public.

Over 200 people were buried here with only a small stone to mark their final resting place.

This simple, broken column marks the final resting place of one of America's most famous explorers.

These early tent-shaped grave coverings are unique to Appalachia.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.