Thrill-seekers will go to great heights to raise money for Special Olympics Iowa. “Over the Edge,” a fund-raiser that invites participants to rappel 345 feet off the Principal Financial Center in downtown Des Moines, will be Sept. 19. To register for the event or for more information, call 986-5520 or visit firstgiving.com/soiowa. Watch a video detailing the heart-pumping experience and its cause: http://www.youtube.com/watch?v=pL4TIj9eaZg&feature=related