Jewel Changi Airport is universally considered "worth visiting," even if you aren't actually flying through Singapore. In 2026, it remains a world-class architectural marvel that functions as a hybrid between a high-end shopping mall and a lush botanical garden. The centerpiece is the HSBC Rain Vortex, which is the world's tallest indoor waterfall, standing at 40 meters high and surrounded by the "Shiseido Forest Valley," an indoor garden with over 2,000 trees. Beyond the waterfall, the top level features the "Canopy Park," which includes glass-bottomed bridges, indoor mazes, and "Manulife Sky Nets" where you can bounce above the trees. Jewel is located landside, meaning it is accessible to the general public and transiting passengers who clear immigration. For those on a long layover, it provides a much-needed "nature break" without leaving the airport grounds. It also features over 280 retail and dining outlets, including a Pokemon Center and famous international eateries. If you have at least 3 to 4 hours in Singapore, a trip to Jewel is a highlight of the trip, offering a futuristic, "Solarpunk" vision of how urban spaces and nature can coexist in a high-density environment.