The Eisenhower tunnel, I do remember seeing a TV special about the building of it. As I recall it's well over a mile with low clearance and lots of cameras to watch every itch of the roads; good thing I'm not claustrophobia, or paranoid.

BTW, I got a really good deal at the Doubletree near Denver airport. $59/nite with breakfast, free in-room movies, even pizza. Makes me wonder, how far away is Denver????

Keep'em flying