Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

Could it have picked a better place to land?

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Mysterious rocks that ring musically when struck.

A mysterious find dredged from Louisiana waters.

This sidewalk monument honors more than 50 civil rights activists who helped change the face of America.

Though nicknamed the “Russian Freighter,” this ship was actually sunk off the coast of Pensacola by the U.S. government in a top-secret operation.

The 44,000-ton aircraft carrier was purposely sunk to create an artificial reef teeming with life.

The futuristic test model of an iconoclastic visionary who wanted to redesign the world.

The "worst battleship ever built" is enjoying a grand second act, submerged 30 feet in the Gulf of Mexico.

The world's largest private aircraft collection.

With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

Off of the Crawfordville Highway in Florida, nature is taking back this decrepit row of Ford trucks.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

St. Augustine's record-setting narrow street was designed to protect against pirates.

"We Seceded Where Others Failed."

An underwater statue of Christ blesses the depths off Key Largo.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

A building so large that it has its own weather.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”