This sword isn't waiting for a king to pull it out. It was placed there by a saint.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

The arboretum whose marshy soil sucked up the dreams of housing developers.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

The final resting place of the world's first nuclear reactor.

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Rusting ships sit in a desert where a sea used to be.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

America's post-nuclear-attack chambers of Congress.

This Italian foot path winds through the mountains via 52 individual tunnels.