This North Carolina store preserves a historic moment in America's movement for racial equality.

The sole remaining outpost of a once-thriving South Carolina chain still sells “pic-a-nic” baskets.

This woodland architectural installation acts as a camera obscura for the heavens.

A sign marks the plane crash that caused two nuclear bombs to fall in North Carolina.

Using a massive antenna made up of five miles of wire, two scientists tuned into organic radio waves from the planet Jupiter.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Suburban observatory was personal lab of the father of modern astrophysics.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

World's largest precision optical instrument used to detect Einstein's elusive gravity waves.

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

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A tribute to a future time when gravity is conquered.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

The crash of this great airship signaled the beginning of the end for dirigibles.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

The highest point in Maryland is only accessible by hiking through another state.

Tiny observatory made big contributions to the study of the Earth's motion.

A field of nothing but boulders which resembles a giant's gravel driveway.