Once the tallest building in Detroit, this Gothic church houses some of the oldest stained-glass windows in the country.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

Colorful and chaotic stacked hotel in North Holland.

Amsterdam's former hotspot for public executions and dissections.

Amsterdam's Red Light District leaves little to the imagination.

A public urinal so pretty, it was declared a national monument.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

In the middle of an abandoned stretch of old Route 50 lies a tombstone that weighs three tons.

A 2,000-year-old Adena burial mound located along a busy street in Columbus, Ohio.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

A retro walk through the history of the tube.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

The actor best known for slapstick comedy is memorialized in his home town.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

This unincorporated community in western Ohio got its peculiar name from John "Daddy" Baker.

Jimi Hendrix's legendary recording studio in Greenwich Village.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

No monkeying around, this fountain was really named after the classic sci-fi film.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.