Metro station with a claim to rock n' roll fame.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

The most visited, and possibly most controversial, museum in Germany.

The final resting place for the remains of 143 Habsburg royalty.

Baroque celebration of the end of the Great Plague of Vienna.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Old Tudor home moved on thick iron rails to a new spot.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

Famously misunderstood wonder of the ancient world

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

The highest point in Florida is still the lowest high point in the country.

The world's largest collection of garden gnomes lives among the trees and wildflowers on this woodland reserve.

A monument to the Mohawk people stands along an old Native American trade route.

The monumental steeple on Amherst College's campus has no church attached to it.

This supermarket is suspended 25 feet above an interstate highway.

The massive Roman arch in New Hampshire that was meant to be a tomb.

This picturesque abandoned home is rumored to be a spite house.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.