This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

The world's tallest bridge is also possibly the most elegant.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

After the construction of a nearby cathedral obstructed the view, the oldest belfry in Belgium was more than doubled in height.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Museum in a swimming pool where the water still flows.

This statue honors the thousands of Allied avians that served and died for France during World War I.

An astounding collection of taxidermy, fossils, skeletons, and even a few strange live beasts.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Historic medieval fortified city in southwest France.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

Eighty million natural history specimens call this gargantuan museum home.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The modern birthplace of Irish freedom.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The world's largest reflecting pool is just two centimeters deep.

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.