During my last visit to Korea (in November) I took a day to roam the streets of Seoul, talking to Koreans about several topics. One of the things I asked was "What are the best places to see in Korea?" Everyone I talked to had some great recommendations, so I compiled them together into this video.
A few of the recommendations overlapped - some people agreed with each other. You can know that any of these places would be great for anyone to see who's visiting Korea.