CNN  —  Singapore’s Changi International Airport has won just about every award there is in the aviation industry — including the title of world’s best airport for 2025. Now, Singapore is expanding its national airport, breaking ground this week on a fifth terminal that is due to open in the mid-2030s. Singapore’s Prime Minister Lawrence Wong led the official groundbreaking ceremony on May 14. A nation-city of six million people, Singapore has poured all of its commercial aviation resources