This banal Parisian entranceway is not what it seems.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A museum of carnival attractions where you are invited to ride the rides.

The oldest stone house in Paris was built by its most famous alchemist.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Paris' linguistic guide to the international language of, yes, love.

A memorial dedicated to the victims of the Columbine High School shootings.

A tribute to Loveland’s most famous sweethearts, who helped spread cupid’s message to millions.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

The world's largest sticker ball weighs in at a mighty 231 pounds.

“You better take care of me Lord, if you don't you're gonna have me on your hands.” ― Hunter S. Thompson, Fear and Loathing in Las Vegas.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

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

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This naturally-sourced hot spring is now home to a clothing-optional resort.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

Rainbow-hued local gem in Venice.

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