The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

A Beaux-Arts triumph set to become Ford's innovation campus

Opulent downtown movie theater now houses cars as an indoor parking garage.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

This working class sculpture pounds his hammer all the livelong day.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Copenhagen's celebrated theme park and gardens.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

Venice's island of the dead.

Go inside to really appreciate this 500-year-old technological masterpiece.

Morocco's Argania trees are infested with nut-hungry goats.

Vast stretch of tide-pools with a unique Moroccan charm.

This striking art museum holds an amazing series of curiosity cabinets.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

A wall of chewing gum moonlights as collective art.