This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The oldest continuously inhabited street in America.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

100 massive sculptures in the Hudson River Valley.

This translucent sculpture represents a quintessential component of New York City's skyline.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

Adherence to strict Jewish laws is required to enter this ultra-conservative New York village.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

The island residents are known for taking their quirky sense of humor with them to the grave.

"We Seceded Where Others Failed."

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

Leave it to Key West to drop a real-live drag queen instead of a ball to mark the arrival of the New Year.

This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

Visitors are welcome to enter this lush Key West sanctuary to entertain its plethora of rescued parrots.

A monument celebrating the idea of reaching inaccessible places.

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

A historic presidential getaway on the continental United States' southernmost island.

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

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