Jewel Changi Airport is widely considered one of the few airport attractions that is absolutely worth a dedicated visit, even if you aren't flying. The centerpiece is the HSBC Rain Vortex, the world's tallest indoor waterfall, which is surrounded by the lush Shiseido Forest Valley. In 2026, it remains a marvel of "futuristic" architecture, offering a massive mall, a cinema, and specialized attractions like the Canopy Park and Hedge Maze. While most of the forest areas are free, some attractions require a ticket (approx. $8–$15). For a 2026 traveler, it is a peer-to-peer "must" if you have a layover of 4 hours or more. If Singapore is your final destination, visiting on your arrival or departure day is highly efficient. While some call it a "been there, done that" bucket list item, the sheer scale and beauty of the indoor gardens make it a unique urban sanctuary that truly lives up to its "World's Best Airport" reputation.