Oh great - you start and take the easiest one!
I've enjoyed watching he Olympic Village being built (probably more than I'll enjoy the Olympics themselves).
Flew into SOU the other day - Right hand side on approach gave great views of Portsmouth and the Spinnaker Tower, then on up to Winchester and the Cathedral before turning back to land.
HKG - right. Many times, there is a flight over the Island with views of the Island and Kowloon.