An abandoned colonial French prison notorious for its hellish conditions.

A miniature village mimics the surrounding buildings so well it includes itself.

The seamy, underground secrets of Portland's criminal past.

Stroll through a wonderland of stupendous moss-covered trees.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

The hellish conditions of this abandoned mine that snakes beneath the Pacific Ocean gave it its diabolic name.

An exotic jungle hideaway run entirely by indigenous Kichwa women.

This picturesque mansion has gone from opulent ruin to nature museum.

Ripped apart by a bomb in 1993, the shell of Pablo Escobar's infamous vacation house still stands.

This picturesque island graveyard is the final resting place of dozens of notorious pirates.

On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

A house of courtship where the Jazz Age's most storied lovers got their start.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.