A mailbox that saved a nature reserve.

Ruins of an American Civil War iron forge still survive today.

This scented city oasis was a labor of love.

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

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

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

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

The fading, forgotten remains of a once bright and booming factory.

A reproduction of earth's many biomes.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A short hike into the mountainside forest reveals a decaying 1890s town.

The remains of a deserted 1800s farming community can be found in Little River State Park.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

This remote island in Iowa was abandoned after being devastated by flood.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

If astronomy had a ghost, it would look like this observatory.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

Abandoned silver mine strewn with wrecked and twisted structures.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

Ruins of a Carnegie family mansion on Cumberland Island.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.