One of the best webcams (so far as video quality) I've seen is the Abbey Road crossing webcam. The live stream is focused on the zebra crossing featured on the cover of the final Beatles album, just outside the famous studio where many of their recordings were done. People mimic the pose from that album cover and, since the webcam is a famous one, you see them on their cellphones talking and waving to the folks back home.

For those of us on this side of the pond, you want to check it out in the morning when it is the middle of the day in London.

http://www.abbeyroad.com/visit/