One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

This church in Pittsburgh is home to the largest collection of religious relics in North America.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A sculpture that resurrected the only tree standing following the devastating 2011 tsunami.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

White beach sands made of the remains of tiny, star shaped creatures.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This floating cinema brings new meaning to the phrase "going out" to the movies.

Peek through a transparent pyramid and drink in the mountain made of books.

This sailor's boneyard was lost under a parking lot for decades before being rediscovered.

An incredible garden taking over the interior of a massive sinkhole.

An alchemist's "magic door" stands in the middle of a Roman park.

New Preston and Kent, Connecticut - where Friday the 13th, Part 2 was filmed.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

Okinawan dining in a twenty foot tall, man-made tree house overlooking Naha Harbor.

Abandoned Nazi train station turned underground astroparticle laboratory.

A multi-storied adobe complex has been inhabited for more than a thousand years.