An obscure waterfall that looks like something out of a fantasy novel.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Nuclear reactor created the plutonium used on Nagasaki.

One of two observatories in the U.S. that routinely detect gravitational waves.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

The sail of the first nuclear sub to circumnavigate the world.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The highest peak in the state of Vermont has some interesting features.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

Built by the patriotic residents of Boonsboro in a single day.

One of the only memorials dedicated to journalists who died in combat.

A local prank turned town icon.

Buy a token from the liquor store and you can make this beast spew flames on command.

Less a museum than a bizarre fantasy world created by artists and engineers.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

A 19th-century cabin built into a hollowed-out Sequoia tree.