One of the most scenic falls in Massachusetts has a history of death and grim legend.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

This Native American settlement dates back to the Pueblo II period.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

The site of the first "historically true" UFO encounter in the U.S.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

Inside Crosswicks Creek Park resides an estate chronicling 200 years of history.

For decades, it has disappeared and reappeared as water levels rise and fall.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

"Where the ducks walk on fish."

When the Austin Dam failed it destroyed much of Austin...and then it failed again.