In the warmer months, in the middle of Silver Lake in Virginia, Minn., you're bound to catch a glimpse of a floating loon named Ginny. But Ginny isn't like any loon you've ever seen. She's a 21-ft-long monument built by the "Land of the Loon" festival committee. Built of fiberglass over a metal frame in 1982, just a few years after a smaller version was vandalized. It's tethered to the bottom of the lake by a steel cable.