This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

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

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

The simple gravesite of a Romany clan leader is dotted with offerings, including cans of her favorite drink, Crush orange soda.

A self-taught astronomer fell in love with the stars and built his own observatory in Colombia.

These abandoned grain silos and tunnels are an urban exploration dream.

At nearly 1,000 feet long, this astonishing glass suspension bridge is one of the longest in the world.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

China's monumental dinosaur museum featuring an open dig site.

This incredible Chinese theme park may be the largest bootleg in history.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

Famous for its bio-luminescent inhabitants, known as "dismalites."

148 feet long and in the middle of a verdant forest.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

Carved faces add a touch of magic to this island's impressive oak trees.

An oversized metal construction of Billy Tripp's moods going through life.

The world's largest collection of porcelain "veilleuses-theiere," or night light teapots, includes four that belonged to Napoleon.

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

One man's ambition created this psychedelic log home.

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

Visit this playground of waterfalls, caves and sinkholes.