Over at the Skunk Works, aircraft designers are hard at work cooking up a hypersonic scion to the legendary SR-71, the superspeedy recon jet of the Cold War.
The American Air Museum and the Imperial War Museum in Duxford house everything from an A-10 to an SR-71 to a B-52 and a B-29. Here's a full photo tour.
In June 1943, Lockheed made a bold pitch to the U.S. Army that it could build a jet fighter, and build it fast. Since then, the Skunk Works has conjured up the U-2, the SR-71, the F-117, and more, and it's still going strong.
Some of America's most famous and enduring technologies were developed at Area 51, from the U-2 and SR-71 Blackbird spy planes to the ancestors of today's Predator drones.