Skytrax evaluates over 400 airports around the world for service, check-in, transfers, shopping, security, immigration, and more.
It's no surprise that Changi took the No. 1 spot. The international transit hub has incredible amenities, like a butterfly garden, rooftop pool, movie theaters, hotels, spas, and showers, and even a four-story slide.
Last year, I visited the airport during a trip to Singapore and had a chance to explore. The bottom line: This is a place where you'll actually enjoy having a long layover.