400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The first American department store, and home to the largest operating musical instrument in the world.

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

A rare view of a preserved Victorian science museum.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

An artist's cute bronze subway sculptures belie his violent artistic past.

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

A popular European tradition makes its way to the states on one of America's most famous bridges.

Peek through the gates at this oasis from the city, full of Old English charm.

A semi-scholarly approach to sex.

Tucked in the back of this amazing antique store is an important piece of medical history.

A crumbling hospital from the 1850s on Roosevelt Island.

A terrific purveyor of natural history objects and curios.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

This massive redwood tree has a hole in the base big enough to drive through.