The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

"X" marks the spot of an echo chamber in the middle of a plaza.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

An unfinished rail tunnel that has since been used to house cheese and bats.

The author's beautiful and historic home is also a fully functioning goat farm.

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

The wooden house where the jazz great learned to play the piano.

The record holder for the world’s largest peach.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

An old-timey medicine shop that once served Chinese laborers during the Gold Rush is still open for business to this day.

A natural dome made of volcanic glass in Inyo National Forest.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

It was once the base for a series of domestic terror attacks.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

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

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.