Check out the world of extraordinary height with this up-to-date list of the tallest men in the world. From historical giants ...

Professor David Geary, a cognitive scientist and evolutionary psychologist, has researched the topic of heights and says humans have been getting taller.

Per an ESPN story from November, Rioux is the tallest player in men's college basketball history. As noted on his Florida profile page, Rioux holds a Guinness World Record for the tallest teenager.