From the 6-wheeled Tyrrell to the Chaparral sucker car, discover 5 of the weirdest race cars ever made. See the tech that ...

This odd German war machine featured twin engines, a reversible gearbox, and the ability to drive in either direction. But its long, box-like hull hung so far over the tracks that it easily dug itself ...

The greatest inventions and engineering feats of our times — from skyscrapers to bridges to ships — didn't happen overnight. They were built on the backs of years ...