I'm posting this here, because it's a <shudder> Northern California photo. Was up there last week on vacation, and while wandering San Francisco's Fisherman's Warf, saw the one and only US-based Zeppelin NT (the 4th built) flying overhead. Had to take a shot. It was so far away, though, that heat distortion took its toll. It's operated by Airship Ventures for "flightseeing" rides.
Looks great ;)