High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

One of the oldest living oak trees in the Southeast.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A castle built by an eccentric medieval enthusiast in rural Ohio.

Take a drunken tour inside the world's largest known geode.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A sculptor's dream castle turned fantastical ruin.

A snapshot of the city's fascinating voodoo culture.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The eccentric mansion of one of the most popular horror authors of modern times.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.