A statue erected on an infamous cliff where young boys would hold dangerous "pee offs" to prove their mettle.

This sprawling bookstore spans four floors and has more than a million books in stock.

An ever-evolving wall of graffiti art off East Liberty Street.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

"We Seceded Where Others Failed."

The last bastion of Roman presence north of the Alps looms over a German town.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

The fairy tale castle of the "fairy-tale king."

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Advice-columnist's bell tower, paid for with pennies.

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

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

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

Detroit’s downtown castle is one of the oldest structures in the city.

Glass and concrete building designed by Albert Kahn.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

Abandoned concert venue legendary for its rock counterculture.

The bones of an old zoo crumbling in the shadow of a new one.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.