Shinsegae Centum City

Shinsegae Centum City in Busan's Centum City is officially the world's largest department store by floor area, certified by Guinness — and treats the title seriously, with 14 floors above ground spanning luxury fashion, multiple food courts, a sizeable indoor ice rink, a spa zone (Spa Land Centum City) with hot-spring pools, and a rooftop sculpture park. The complex is essentially designed as a self-contained day destination, particularly useful as a backup plan during Busan's heavy rain or peak heat. Spa Land alone — naturally drawn hot-spring water in over 20 themed pools — justifies a half-day visit. Reachable from Centum City Station on Subway Line 2. Pair with Haeundae Beach in the evening.