A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

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

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

A striking public sculpture representing the period of martial law in Communist Poland.

The silly symbol for an underground protest group is now scattered around the city.

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

This demon atop the Notre-Dame de Paris looks utterly bored.

The celebrated eyesore created by starry-eyed sweethearts.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

The storefront of a ramshackle Parisian puppet theater.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

This 18th-century sundial was designed to calculate the date of Easter each year.

Claude Monet was baptized in this lavishly ornate Paris church.

The video game-themed street art first popped up in the French city.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

What looks like a normal building is really a hollow facade hiding a subway vent.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A surrealist timepiece by the artist of melting clocks.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.