When I was a child, I thought my brother Joe could do anything. As an adult he tried and succeeded with many amazing feats. One of his projects was a mammoth swing that hangs over the head of a deep, forested ravine near the world-famous Mammoth Cave National Park in Kentucky. Six-foot wide black wings made of steel form a giant bat-like figure located in the trees about 40 feet above a waterfall. Joe constructed this strange spectacle during the summer of 1990 while on a week's vacation. When we were young, Dad often built rope swings for us to enjoy, but Joe's current plans were much more grandiose.