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

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

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.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

Museum dedicated to "the man who moved the Earth."

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

This Communist-era residential block is one of the longest residential building in Europe.

Two gushing waterfalls of hot spring water within a block of each other.

An impressive monument to Poland's independence.

An abandoned football stadium with a tragic past.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

Striking occult iconography on a medieval German church.

This gateway to subterranean Hanover plays jazz, pop and rock to surprised passersby.

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

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

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

A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.

The old castle kitchen where nucleic acid was first isolated is considered the "cradle of biochemistry."

This statue has a painful history, but activists have since recontextualized it as a way to educate visitors about the dangers posed by fascist regimes.

Made of granite, this is a symbol of the Inuit peoples near water that expresses abundance.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

The footprint of a frustrated devil in Munich's Cathedral.