The PGA Championship, one of golf’s most prestigious events, isn’t just a tournament—it’s a litmus test for the soul of the sport. Over decades, golf courses have evolved from humble backyard setups to global powerhouses, their histories etched into the annals of sports history. This year’s showdown at Aronimink Golf Club in Pennsylvania, where Rory McIlroy aims for back-to-back majors, raises questions about who truly defines the game’s heartbeat. But beyond the headlines, the answer lies in the stories of the clubs that have hosted multiple PGA Championships: the architects, the locations, and the legacy they’ve left behind. Here’s a deep dive into why some courses stand out, even as others fade into obscurity.