One of downtown Berlin's last reminders of its Communist past.

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

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A surreal museum of extraordinary industrial objects.

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

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Relics given to a Manhattan church to avoid seizure by the Italian government.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A Circus legend leaves an unexpected endowment.

The snowbirds here are circus sideshow performers.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.