The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

A remote crossroads honoring a fallen talent.

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

A relic from a forgotten bakery chain still spins atop a diner.

This bizarre hotel on historic Route 66 has been plagued by rumors of paranormal activity.

The historic home still shows the scars from a little run-in with the British in 1813.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

The world's oldest continuously operating airport was founded by the Wright Brothers.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

Washington's iconic carousel has a nice piece of Civil Rights history.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

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

Look closely and you’ll notice that the color changes a third of the way up the tower.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

This massive swimming pool is the high tech home to the human-powered submarine races.

This former Cold War missile control site played an important role in the creation of GPS.

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

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

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

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