A monument celebrating the idea of reaching inaccessible places.

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

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

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

Arrr! The most authentic collection of pirate artifacts in the world... matey.

A tribute to Ponce de Leon's supposed quest for eternal youth.

A little sculpture with a large wardrobe.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

This replica of the Greek structure is in the heart of Nashville.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

A unique collection of diving equipment spanning antiquity to the present day.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

Neglected resting place of some of the city's early luminaries—and a woman encased in concrete.

Located within a historic park, the beacon is the oldest standing structure in Miami.

A community of collapsing homes more than a mile out from the Florida coast.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

It turns out that a hurricane-prone beach is probably not the best place to house wild animals.

Former villa and estate of James Deering developed to preserve native tropical forests.