The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

A sharp sculpture made of thousands of pieces of jagged glass.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The former headquarters of history's oldest megacorporation.

Where royalty waits in the height of luxury.

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

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

Macabre astrological automaton clock dating to the late 1400s.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.

A Nesting Doll of Churches.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Yup, that's a 330-foot yacht passing over the highway.

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

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

A fascinating insight into daily life in the Eastern Bloc.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.