This lush Florida island is home to the ruins of a crooked ship breaker's tiny empire.

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 highway's southernmost spot is a beloved local attraction.

This blowhole is supposedly caused by a trapped monster.

A unique set of caves that spits waves back out into the ocean.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

Herman Melville wrote 'Moby Dick' in this landmark 18th-century house surrounded by farmland.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A lush indoor jungle fills this bustling Madrid transportation hub.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

One philanthropist's extensive collection of knick-knacks and curiosities is now a public museum of oddity.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

Over 50 whirling pools left behind from the glacial age.

Jimi Hendrix's legendary recording studio in Greenwich Village.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

The rare American Civil War-era weapon was never fired in anger.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.