Actually only 60 stories tall (three of its stories are underground), what once used to be the tallest building in the city has now been dwarfed by the 69-story Mokdong Hyperion in Yangcheon and the 73-story Tower Palace in Gangnam. But its exterior still glows an impressive gold, especially at sunset, and its top-floor observation deck provides a great view of the city. Its official name is 63 City, but everyone just calls it the Yuksam Building. The tower includes the country's first large-scale aquarium, an IMAX theater (in three languages), aforementioned observation sky deck, and a variety of restaurants, including Japanese, Chinese, and Korean places. The ones on the higher floors (56-59) offer the best views, but you'll pay premium prices for the food. If you're watching your budget, head down to the food court on the first-floor basement level.
Transportation: Subway line 1 to Daebang station (exit 6) and catch free shuttle about 40m (131 ft.) from the exit toward Yeoido; line 5 to Yeoninaru station (exit 1) and catch free shuttle in front of the Sambu Apts, or to Yeouido station (exit 5) and catch free shuttle at St. Mary's Hospital platform
Opening Hours: Daily 10am-midnight, last entry 1 hr. before closing (IMAX last show 8:10pm, 9:10pm weekends/holidays)