After 33 years of being an open challenge, a Canadian team finally nabbed the $250,000 Sikorsky Prize for a human powered helicopter:
http://news.cnet.com/8301-17938_105-57593417-1/human-powered-helicopter-finally-takes-sikorsky-prize/
http://news.cnet.com/8301-17938_105-57593417-1/human-powered-helicopter-finally-takes-sikorsky-prize/