This sculpture of a pylon is upside down and askew, as if its main purpose is to confuse passersby.

These remnants of Old London Bridge possess unique acoustics that allow for whispered conversations to carry from one side to the other.

An underground city of salt.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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

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

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

The ceiling of this shopping arcade is adorned with six trompe-l’œil artworks, including a grim funeral scene.

A gigantic mechanical bull rages over unsuspecting passengers at Birmingham’s central station.

The largest public library in the United Kingdom was designed to reflect the industrial and artistic history of the city where it stands.

The star-studded street honors the city's most notable Brummies.

A bench and a bridge pay tribute to Birmingham's favorite heavy metal band.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

Dedicated to the outnumbered Finnish forces who pushed back Soviet forces during the conflict.

A subterranean house of worship carved right out of the bedrock.

An alien church provides much needed silence in the midst of a Finland shopping center.

Hundreds of signs pointing to the birthplaces of current Helsinki residents form stalactites on the ceiling of the cave-like Kamppi metro station.

A unique sculpture calls the outside of this steakhouse home.

A medieval setting reimagined into a unique art alley.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.