There is much debate about which is the world's best airport, but which airport has the best views on approach?
Other than HKG, I personally have only ever flown into European airports, so I cannot offer much of a perspective outside of Europe, though, within Europe, I have landed at numerous airports.
For me, the best views from the aircraft I have experienced are those on approach to Amsterdam Airport Schiphol. You get a full panorama of the Dutch coastline over Scheveningen and Noordwijk, then the shipping docks and canals that feed into the North Sea from inland, then the low-lying fields followed by the view of the yellow double-decker trains and snelweg feeding the airport in the final few seconds before touchdown.
Can any other airport approach beat that?