Korea attractions
Observation

SEOUL SKY (Lotte World Tower)

서울스카이 롯데월드타워

Korea's tallest building, with a glass-floor deck near the top. It sits right on the Jamsil stay area, so it's an easy add-on the day of a KSPO Dome show.

Admission
~₩31,000 (fast pass higher)
Booking
Buy online for a timed slot; weekends sell out
Hours
~10:30–22:00 (last entry ~21:00)
Getting there
Jamsil Station (Lines 2 & 8), Exit 1–2
Nearby food
The Lotte World Mall food hall and the cafes around Seokchon Lake

K-pop concerts near here

Shows within about 15km, with where to stay and how to get home after.

Prices and hours change, so check the official source before you go.