Forbes Travel Guide names Singapore Changi world's best international airport

"Two-time winner Singapore Changi redefined what an airport could be, adding unusual features such as the world's tallest indoor waterfall, a 24-hour movie theater, butterfly and bamboo gardens, and a rooftop pool and Jacuzzi where travelers can watch planes take off," Forbes Travel Guide wrote.

The winners were determined by a survey of more than 9,000 of the most well-traveled people in the hospitality industry, including luxury travel advisors and most frequent fliers.

Debuted last year, the awards celebrate those airlines and airports that deliver a world-class passenger experience.

Changi was also voted the world's best airport for dining at this year's awards with more than 200 dining spots.

Forbes Travel Guide, established in 1958 as the Mobil Travel Guide, is the oldest travel rating service in the U.S. and the creator of the five-star hotel rating system.