In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

Down this Cracovian street resides a plaque with a stark message about the city's air pollution.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

A collection of old neon signs from all over Poland line a secluded courtyard.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

A condensed piece of China floating in a Dutch harbor.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Amsterdam's Red Light District leaves little to the imagination.

This unusual elevator doesn’t stop or slow down.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

The attic of a four-century-old canal house hides a clandestine church.

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

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.