International Airports hubs

Airport have often be styled along "Avant Garde" as they are for many the 1st place to see when arriving somewhere new. But finally airport have reached sleekness. Recall these plump building with the center tower of the 50s,60s? We are on the way to uniqueness pleasing to the eye while remaining practical. In some I nearly regret having to fly on. I loved this underground tunnel at Frankfurt Airport that changes light matching AMBIANT music that should relax and calm stressed travelers. Having time I walked it 3 times to take it in, in full.