The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

A Latvian rescuer who saved countless lives during World War II.

Statues of a fire-breather, a clown, and a whole performing troupe celebrate Luxembourg's creative side.

This grand gate once marked the entrance to a military barracks.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

View one man's eccentric collection of nearly 5,000 corkscrews, then sip some Chablis.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

Built to celebrate the glory of a new queen, this forgotten monument has moved around Madrid three times, reflecting 200 years of political whims and city redevelopment.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

A collection of machines designed to break things for science.

The London statue that imitates passersby.

Near the site where the English Archbishop was born, you can find an emblem in the shape of a pilgrim's badge.

The hands on this clock appear to be created by two workers sweeping debris into careful positions.

A set of outdoor stairs named in honor of a famous Austrian artist.

How did a lighthouse wind up in the middle of this landlocked German city?

This statue points to another unusual companion work of art often overlooked by visitors.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

Metal horses galloping through a London fountain provide a link to the city's past.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

According to the local legend, these boys and ducks were turned to stone by an angered water goblin.

Take a seat and hear a song by the composer Frédéric Chopin.

Dedicated to the man who saved hundreds of children from Nazi-occupied Czechoslovakia.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.