The site of one of history's most indelible and horrific tragedies.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

This Great Depression-era creation was once known as the strangest house in the world.

Vintage cars and motorcycles race for glory in a throwback motorsport celebration on the Jersey shore.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

World War II bunker still standing on the New Jersey beach.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

A grotesque Fiji merman dwells within this traditional Dutch-style building.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

A table rock formation that has been intriguing West Virginians for years.

Two insane asylum bodies embalmed by an amateur.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The highest point in Maryland is only accessible by hiking through another state.

This one-room cabin where the young colonel slept during the French and Indian War.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

There's a crumbling old mansion inside the Smithsonian National Zoo.