The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

After local authorities changed the design, the building's architect, Le Corbusier, wanted nothing to do with it.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

This monumental work of art symbolizes the coming together of a previously divided city.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Reminders of the Battle of Berlin still scar the railway.

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

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A Swiss amusement park entirely dedicated to the theory of ancient astronauts.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.