An abandoned tuberculosis hospital moulders on into an uncertain future.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

An industrial waste tourist attraction.

These unique rock formations were created during the Ice Age.

A glittering Thai Buddhist temple in suburban Pennsylvania.

A prehistoric rock shelter that's literally in someone's backyard.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

A home covered with elaborate mosaic and other pieces of art.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Century-old shop, specializing in Occult products.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A layered tribute to the work of mosaicist Isaiah Zagar.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

America's first serial killer rests in anonymity.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

It's a pretty creepy lock-up.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

What started as three small gnomes at the base of a tree has grown into a full-blown gnome home.