Keep 'em coming, jetlagger.
I do most definitely enjoy this sort-of "travelog." Most appreciated.
One question, though: I seem to remember the term "Airworld" in a fiction novel. Only thing I can remember from it is the principal character is going thru Denver and he notes the "spinnies" in the tunnel.
Or maybe not; perhaps my steadily diminishing brain cells are just betraying me.
Anyway, I love the Airworld term, and thanks.