Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

An enormous, inside-out glass globe built in 1935.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A kaleidoscopic warehouse-maze of handmade neon signs.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A crumbling hospital from the 1850s on Roosevelt Island.

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

Rippling sand dunes frozen in the Arizona rock.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A terrific purveyor of natural history objects and curios.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

A small Richmond island dotted with the remnants of hundreds of years of history.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

World's first "penitentiary," meant to be humane, drove men insane.