I built the Cellular One system in 18 counties of east Kentucky back in the mid '90's. They chose to locate their switch on a mountain near Pikeville, KY, and had a colocated cell on an FM tower there. About once a week B-52's would fly by below the mountaintop, usually 4 at a time. They were so close I could see the cockpit curtains were closed. I reckon they were practicing nap of the earth flying.....
Very cool!