The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

A somber monument commemorates the site of a Native American reservation marked by suffering.

Two dozen pinball games hidden away inside a most unlikely location.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

The final resting place of the living embodiment of the famous Forest Service symbol.

A celebrity from the late Cretaceous period.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

This Little Rock legend has survived decades of rowdy crowds, three fires, and a zombie wedding.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

Steep canyon walls hide a forested oasis in the West Texas desert.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The symbol was surreptitiously built into the river bank by German prisoners of war.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

A clear blue swimming hole with hidden caves, still unexplored.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

Colorado's only true geyser is hidden within the San Juan National Forest.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Largest man-made excavation on earth!

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.