The modern birthplace of Irish freedom.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

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

The highest peak in the state of Vermont has some interesting features.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

One of two giant blue cockerel statues erected with an intentional double meaning.

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

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

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

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

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

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

The smallest post office in the United States is no bigger than a broom closet.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

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