The Changi Airport in Singapore has a four-story indoor slide!
Two slides were built in Singapore's Changi Airport, one is one-story tall and the other is four-stories (12 m) tall! That makes it the world's largest slide inside an airport, a category we're sure is extremely competitive.
The airport advertises that you can reach speeds of up to 6 meters per second, which comes out to be about 13.4 miles per hour. You can claim one ride on the slide for ever $10 you spend inside the airport. You can also claim 5 free rides on your birthday month if you are a member of the airport's reward program.