Best Denver Invention That Immobilized the World - 2002
The Denver Boot
Back in the early '50s, some Denver cops were bemoaning the problems involved with towing cars -- and an inventor friend, Frank Marugg, shouldered the task of coming up with a better way to handle parking scofflaws. Enter the Denver Boot, the now-notorious clamp that paralyzes the front tire of an offending auto until its owner pays up (or gives up on the car altogether). Although Denver was the first city to use Marugg's masterpiece, it's since spread around the world.