An enormous, inside-out glass globe built in 1935.

A building so large that it has its own weather.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

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

A memorial to the United States's first wildlife refuge warden.

This small island was the first National Wildlife Refuge ever created in the United States.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

This tribute to the founding father of the American dictionary originally contained a spelling error.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This small-town pizzeria won the Hollywood lottery.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

A former copper mine which became a truly unsuccessful prison.

The resting place of a Civil War celebrity's amputated limb.

One street divides a single town that stands in two U.S. states.

The highway's southernmost spot is a beloved local attraction.

This Florida arena, once host to "the fastest game in the world," has sat empty for 25 years.

An icon among Florida's pre-Disney tourist attractions.

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