A contemporary fresco movement illustrates the region's rich history.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

A preserved Nazi labor camp now has a Holocaust museum on site and memorials to the thousands that died while imprisoned at the camp.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

The imposing piece of artwork is a celebration of Pan-American fraternity.

One of the last realized projects of an influential, self-taught, French Modernist architect Jacques Couëlle.

This TV tower once secretly housed a GDR intelligence team.

A 12th-century fortress containing some of Berlin's oldest buildings.

This conical hill was built as a testing ground for an engineer known as the Glider King.

A restaurant and observation deck built in a unique broadcasting antenna.

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

Started as a kitchen garden, now the second largest botanical garden in the world.

A slice of central Asia in the middle of Berlin.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

An eerie, derelict amusement park in Berlin.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

Where animatronic singing fish go to retire.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

Bronze statue marks the spinach capital of the world.