Jewel Changi Airport is an entertainment and retail complex linked to Changi Airport, Singapore. The transportation hub is also a nature-themed shopping, dining, and recreational extravaganza with themes of Singaporean culture. This eco-infused multiplex’s centerpiece is the 131-foot-high Rain Vortex, the world’s largest indoor waterfall, amidst the tropical oasis of the Shiseido Forest Valley, featuring 61,000 trees.