The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

America's first public mental health facility.

The resting place of a Civil War celebrity's amputated limb.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

Bad farming practices caused this unnatural natural wonder.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

Dothan, Alabama has been invaded by scores of anthropomorphic peanuts.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

Perhaps the most scandalous statue of America's first president.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

Rising from the sea like a stone monster.

Medicinal spa created with the discharge from a geothermal energy plant.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.