Out of a labyrinth of abandoned tunnels and stops, this Queens subway station is arguably the most mysterious—if it exists at all.

Vermont's hills are alive with the sound of music at this historic hotel.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

This ceremonial mound is one of the first officially recognized Native American historical sites in North Carolina.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.

The sole remaining outpost of a once-thriving South Carolina chain still sells “pic-a-nic” baskets.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

The only pachinko parlor in the United States.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

An alternate history park where the Union Army loses the war... to dinosaurs.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

One of the last active volcanoes on the Eastern seaboard.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

America's first serial killer rests in anonymity.

This twisty sign depicts the chain's first logo.

An early-19th-century hotel with a past that is steeped in the Civil War.

Tucked away inside a historic Savannah hotel is a hundred-year history presented in ladies' lids.

"X" marks the spot of an echo chamber in the middle of a plaza.

A pink and gray pair of pachyderms advertise a fireworks shop.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.