This ordinary street was made infamous by a legendary visit from the devil.

One of Scandinavia's largest mosaics pays tribute to Danish art and science luminaries.

Opened in 1787, this old-world treasure is said to be the oldest restaurant in Copenhagen.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

A plaque on the base of this statue holds a bewitching design.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

Once a resting spot for King Fernando VII.

The remains of this misplaced church were moved here stone by stone.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Commonly acknowledged as the only public monument to the Devil himself.

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.