1. Seoul Tower
Rising almost 500 meters above the city, this communications and observation tower provides dramatic views of the city from its perch on the side of Mount Namsan. A cable car whisks you up the side of the mountain to the base of the tower. From here, you can go up in the tower and visit any one of four observation decks, one of which is a rotating restaurant.
There are two restaurants at the tower and, of course, several gift shops. There's even a digital observatory, where people with height issues can experience a live, 360-degree view through the use of 32 LED screens and cameras mounted at the tower's top.
The views from the tower are great, but so are the views of the tower from most parts of the city. Computer-controlled LED lighting on the exterior of the tower provides a digital, visual cultural experience of Seoul with themed lighting presentations.
Address: 105 Namsangongwon-gil, Yongsan 2(i)ga-dong, Yongsan-gu, Seoul
Official site: http://www.nseoultower.co.kr/eng/
2. Bukchon Hanok Village
For a taste of Korean traditional culture and architecture, head over to the Bukchon Hanok Village. This preserved area of several ancient neighborhoods gives you a feel for what it was like to live in Korea 600 years ago. It's right in central Seoul, in the area between the Gyeongbokgung Palace and the Changdeokgung Palace.
The neighborhoods feature hanoks or traditional Korean houses. It's a unique place, as it's a historic area, very popular with tourists, but it's also a real neighborhood because the houses are all occupied. Some of the hanoks are now guesthouses and bed-and-breakfasts, and a few are museums and can be toured. Others are cultural centers showcasing traditional crafts and other historic aspects of Korean life.
This is a fun place to spend an afternoon and really gives visitors the feeling of being in ancient Korea due to the historic architecture and narrow streets.
3. Lotte World Tower
One of the newest attractions in Seoul is the Lotte World Tower skyscraper. It's 500 meters above the ground and one of the world's tallest (currently fifth) buildings. There are several indoor and outdoor observation areas (called Seoul Sky) at the top on the 123rd floor. Views are spectacular both during the day and at night, and you can see 360-degrees around the city.
On the 118th floor, there's the Sky Deck with the world's highest glass floor. Like magic, the floor changes from opaque to clear, terrifying unsuspecting visitors. Even getting to the top is fun, and the journey is done via super fast, double-decker elevators, with windows on one side and LED screens on the other three and the ceiling.
Inside the tower are offices, luxury residences, and a hotel. There's also an aquarium and a large shopping mall. The tower is home to a concert hall and a state-of-the-art, 21-screen MoviePlex.
Address: Songpa-gu, Jamsil 6(yuk)-dong, Olympic-ro, 300, Seoul
Official site: https://www.lwt.co.kr/tower/en/main/main.do#sec01