Skydiver Felix Baumgartner will ride 23 miles into the sky in this capsule before jumping out. (Garth Milan/Associated Press)

What’s the tallest height from which you’ve fallen?

Your bike? A ladder? The top bunk?

We’re sure you’ve never fallen 23 miles. But that’s just what skydiver Felix Baumgartner will attempt to do Monday.

The Austrian parachutist already has jumped from 13 miles and 18 miles up. But the jump on Monday would break the world record of 19.5 miles set in 1960.

Baumgartner will reach the height inside something that looks like a space capsule. A giant helium balloon will carry it to an altitude right on the edge of space.

Baumgartner expects to be going 690 miles per hour within 30 seconds of jumping out of the capsule.

Baumgartner says he’s ready for his giant leap. “I feel like a tiger in a cage waiting to get out,” he said. The one thing that could postpone the attempt is bad weather in New Mexico, where the jump is supposed to take place.

Needless to say, kids: Don’t try this at home!