Oh, so they're called groundwalks? Cool.

I've been very tempted to use a groundwalk as a treadmill (or however you spell it) before. And do the equivalent for an escalator. Unfortunately, elevators can't really do anything exciting. Not unless you have a Miru, at least. You could hover a few inches above the ground of the elevator and then as it moved down you'd eventually bump your head on the ceiling without even trying.

I've always loved airports too. We've had a bunch of Foreign Exchange Students, and we've had to go to airports to pick them up, etc. I've only flown once in my life, and that was 2 1/2 years ago. It was when we went to Disney World. I'll never forget that plane ride. It was so awesome.