I kept thinking it was something they were doing at school. Maybe a book they were reading? A song they were singing? I couldn't figure out what tower Caleb was talking about. I meant to ask his teacher, but never remembered when I was at his day care.
A few friends have suggesting that maybe he's talking about the air traffic control tower on base. But to be honest, Caleb is almost never on that side of base, so I didn't think that was it.
(P.S. This is totally not my picture. I nicked it from the Mildenhall website, which by the way, was the best in the Air Force last year! Way to go 100 ARW Public Affairs, and let me give credit to Sgt Tracy DeMarco, whose photography skills clearly exceed my own.)