Da Vinci--The Genius: Human-powered ornithopter, a wing-flapping device intended to fly. Courtesy: Grande Exhibtions

From the press release:
Da Vinci—The Genius Exhibition Opens in Two Weeks at New Mexico Museum of Natural History & Science

New Mexico Museum of Natural History &Science


Note: Representative image at left is often cropped for display purposes. Downloaded high-resolution images are not cropped.