Meet one of the youngest geniuses in the world

This little girl may only be three years old, but she's probably smarter than pretty much anyone you know.

Alexis Martin is one of the youngest geniuses in the world. She's already a member of Mensa -- the genius society –- and currently stands as the youngest person in the Arizona Mensa chapter.

Tests show her I.Q. is above 160, whereas the average person's I.Q. is 100.

Her parents found out how crazy smart she was at an early age: 'From 12 to 18 months or so, we'd be driving around in the car and she would recite her bedtime story from the night before. We are talking 20 to 25 page books, and she would recite them from the night before. But not just recite them, recite them exactly,' her dad explained.

Alexis did so well on her I.Q. test that the doctors couldn't even calculate it.

And get this: not only does this toddler read at a fifth grade level, but she also taught herself to speak Spanish using an adult app on her parent's iPad.

A look at more Mensa members: