Well, I thought I wouldn't be able to participate as I am heading home to San Francisco to bury my father, but while waiting for our flight, I knew we were surrounded by wheels, although it was hard to get a clear shot to any of them. In fact, I had never really looked at the wheels of aircraft; I expected them to be gigantic, but found they are pretty small things, just in large numbers. Not the best image for a variety of obvious reasons (sorry), but thought I'd enter it anyway. And luckily this wasn't our plane; I sure thought the tire in front looked a bit low (and I'm a very nervous flyer!).