L7 Hongdae in Heung-hai

In a high-rise building, this upscale hotel is 8 minutes' walk from a subway station and 2 km from the Han River.Warm rooms provide HDTVs, and tea and coffeemakers; upgraded rooms add city views and/or floor-to-ceiling windows. Suites have living areas and/or Nespresso machines.An airy 21st-floor restaurant features city views, as do a rooftop outdoor pool, and a slick poolside bar with views of the river. Other amenities include a 24-hour gym and lounges. Breakfast is available for a fee.