An amazing photo, certainly one of the best, if not the best, taken during this year's Perseids shower.
Your remark of the REALLY REALLY bright Denver, seen from up there, is perfectly illustrated in this shot. Also from up there, but a bit more than 14,000 feet. Actually, from aboard the ISS, at night, from 188 miles above. Nikon D3S, 80 mm, f 2.8, 1/15, ISO 12800.http://twitpic.com/44yfsr