Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

Copenhagen's celebrated theme park and gardens.

Swedish skyscraper with a 90° twist.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

Remnants from a time before electricity.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Krakow's own version of the Hollywood Walk of Fame.

A statue commemorating a Polish dog who took his role as man's best friend very seriously.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A series of playful yellow penguins share a serious message about the environment.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.