Upvote:2
SIN (Singapore Changi). Clean, theater, gardens, and a tour of the city. As a major international hub, it's easy to connect through. I find the main terminal to be architecturally pleasing, but you'll have to pass through customs to see it.
Upvote:6
One of the nicest airport where I've been is Funchal in Madeira. The airport itself is small, but it has a nice balcony to see the airplanes arriving and departing. You can have a beer and relax while you see all the activity around planes (if you like it). It's also very confortable, with sofas here and there where people can sit and look at the magnificent Ocean view.
The landing field won a major engeneering prize due to its unique structural construction
The landing itself is also quite an experience. And watching the airplanes aproach in such a dramatic landscape is also intersting.
(source: iabse.org)