Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

This installation turns abstract economics into a stark, public spectacle.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Local lore claims this park is named after a young woman who jumped off a cliff.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

While it now takes more than a dime to open an account this historic Brooklyn bank still displays the opulence of the gilded age in which it was built.

Richly symbolic public artworks that have been reconfigured for the 21st century.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

Elevated freight railway turned wildly successful urban park.

A dilapidated dock tells the story of Titanic’s missed arrival.

This cemetery of rusting Soviet-era steam locomotives and train cars offers an apocalyptic glimpse into a bygone era.

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

A Soviet era flat that refused to conform to the dull gray standards.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Real bones which are said to have belonged to a Polish dragon.

Inside this Krakow church, an explosion of psychedelic color.

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