Changi Airport in Singapore is one of the world's leading airports, and the duty-free shops here are also famous. The duty-free shops have a very large operating area, bringing together front-line brands from all over the world. If you are flying in Singapore, it is recommended that you come at least 8 hours early, because it is worth visiting whether it is a duty-free shop, an amusement park in the airport or a food street. It is not an exaggeration to spend a day at night, otherwise it will be a great pity.