Having a time machine would be awesome, but for those of us without Doc Brown's DeLorean, State Highway 180 is the next best thing. It's one of the original U.S. highways, was once called Highway 80 and was known as "The Broadway of America." Start your journey on the old Business 80-Fort Worth Avenue. Just past the Trinity River, the street turns into the land time forgot, an intriguing mix of roadside motels, flea markets, diners and retro neon signs. After turning into Davis Street near Oak Cliff, the road changes names with every city limit--it's Main Street in Grand Prairie, Division Street in Arlington, etc. While some stretches have been modernized, the ones that haven't offer a rare glimpse into America's roadside past. So crank up the oldies, roll down the windows and enjoy what's left before it's gone.