Aimee Mullins is an athlete, fashion model, and actor. But there's something a little bit unusual about her: Mullins was born without fibulas (lower leg bones), and had her legs amputated below the knee as an infant. She wears prosthetic legs -- some lifelike and some enhanced for sports performance. In a February TED Talk, Mullins shows off twelve pairs of her legs -- and walks around the stage wearing high heels the whole time.
This is a pretty amazing talk. A word of warning, there is brief nudity depicted in one still image during the talk (a shot of Mullins in cheetah makeup for a movie). Check it out:
If you want to learn more about Mullins's athletic experience, check out her talk about running from 1998 (when she as a college senior).