Changi Airport is the busiest in Southeast Asia, handling almost 60 million passengers last year as international travel bounced back from Covid. In the first half of the year, passenger traffic at Changi returned to almost 100 percent of pre-pandemic levels.

Credits: Getty Images; Author: @Didier Marti;

Terminal 5, when finished in the mid-2030s, will broaden its connectivity to over 50 new cities.