These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

The remnants of an early American attempt at missile defense.

What was once the largest mine in North America has left behind a hollow hill filled with bright blue waters.

Japanese company creates clone dolls that reside in the "uncanny valley."

Once a black market electronics marketplace, now an otaku shopper's paradise.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

This strangely specific landmark will let travelers know when they are half way there.

This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

Pluto is still considered a planet in Ithaca, New York.

The library of every book lover's dreams.

One of the largest, oldest, darkest, quietest motel rooms in the world.

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

A walkable map of the world, made from soil and stone by one man.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

The curiosities and wonders of pharmacy in a delightful historic building.

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

This foolish Victorian sea fort was converted to a deluxe hotel.

Destructive children, start your engines.

A rare view of a preserved Victorian science museum.

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