Image Source The drive down I-75  through Georgia  gets a bad rap. Most people treat it like a necessary evil between Chattanooga  and Florida—just mile markers and gas stations. But here's what they're missing: this 339-mile stretch  passes some genuinely cool spots that make the drive way more interesting than staring at taillights for six hours. We're talking miniature castle gardens, the world's largest drive-in restaurant, ancient Native American cities you can climb, an