Intrinsically evil-looking, record book shattering, and detente-driving are only some of the phrases that could be used to describe the SR71. With the possible exception of the Lamborghini Reventon no car has ever come close to matching the batman-on-crack styling of these planes, even though they are a product of late fifties technology and engineering. Made obsolete by spy satellites, the SR71s have since been decommissioned, but that doesn’t mean all their secrets have been made public. Image source: [Lockeed Martin via Flickr]