How did a roadside oddity become a culture-war flashpoint? During the 2022 governor’s race, the Guidestones move from roadside curiosity to political target—and conspiracy theories start becoming marching orders.    If you like this series, you’re only scratching the surface. Go to ajc.com, become a subscriber, and find out for yourself.  Learn more about your ad choices. Visit megaphone.fm/adchoices