Lotte World Mall
Photo: kallerna / Wikimedia Commons (CC BY-SA 4.0)
The shopping and dining complex under Lotte World Tower (123 floors), home to the Seoul Sky observation deck, an aquarium, and a concert hall. Connected straight into Jamsil station underground.
Nearest exit: Jamsil station (lines 2 and 8) links directly into the mall, so you never step outside.
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