Although it sounds weird to have one of the attractions as Incheon airport, there are multiple reasons why this made it to my list. Within the airport you can find all the average shops and restaurants as you would in any airport (with the added bonus of duty free). But on top of that, there is a full sized cinema, multiple spas, a skating rink, and even nap rooms! Getting lost isn’t hard so keep an eye on your flight time and give yourself enough time to get lost and find your way again!
Location - 272, Gonghang-ro, Jung-gu, Incheon
Website - https://www.airport.kr/ap/en/index.do
Opening Times - 24/7, shops inside dependent on individual shops.
Price - Free to enter, shop prices vary.