Seoul's Incheon Airport is one beautiful airport. Besides Singapore's Changi, and San Francisco's SFO International, I rate this airport one of the best in the world. It is huge, clean, with loads to see and do. AS of this writing, Marc and I had gone through Incheon Airport a number of times. The second to the last time we were there, there was a long traditional parade with what seemed like a Royal prince and princess in traditional garb surrounded by loyal subjects. It made for an interesting layover.