Changi Airport's reputation as one of the world's best airports is well-deserved, and it offers a variety of attractions for layover tourists. With a layover of 6 to 12 hours, you can venture out to nearby attractions like Jewel Changi Airport, which features the stunning Rain Vortex and lush indoor gardens. If your layover is longer, say 24 hours, you can explore the city's highlights like Marina Bay Sands, the Merlion Park, and a brief visit to Chinatown or Little India. While you will experience some things, even a short layover can provide a taste of Singapore's unique charm.