I've been meaning to post a link to this video for some time now but always forget. It's probably been posted before, if so, I apologise.
This is an ident to Channel 4 in the UK which is shown in between programmes. There are many of these shown but all have the same outcome; the camera pans and like an optical illusion, the channel 4 logo appears briefly compiled from whatever is in shot.
727s, 747s, DC9s, DC10s...
Channel 4 - Ident - Aircraft Graveyard - 2010 - YouTube
(This one has a voice-over)
Or there's the official one to watch in 1080p HD.
Channel 4 Ident: Aeroplane Graveyard - YouTube
Some are quite subtle, like this aircraft one but others are quite obvious, such as the Diner one.
Channel 4 Ident: Diner - YouTube
I can't believe some of these have been going for over 5 years, time flies!!