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

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

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

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

A monument celebrating the idea of reaching inaccessible places.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

Where the embers of the Big Bang were first detected.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The world’s largest concentrated solar plant generates as many problems as megawatts.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

An eatery for UFO seekers on the Extraterrestrial Highway.

A decommissioned Naval base now rents itself out for people who want to blow stuff up.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

Concrete strongholds stand guard over the Golden Gate.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The final resting place of a space program monolith.

The first privately-owned space capsule to orbit and land carried a secret payload: a wheel of Le Brouère.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

Where NASA's satellites and rovers phone home.