The Funspot Family Fun Center in Laconia, NH boasts the world’s largest arcade. It is the kind of brag that usually meets reality when you walk through the door. I braced myself for a letdown. Instead, I found a host of vintage video arcade games and pinball machines. It turns out that Funspot is also the American Classic Arcade Museum. With each turn I found a throwback game and discovered an unexpected yesteryear wonderland.