In Seoul itself, there are 5 grand palaces that you can visit. I visited Changdeokgung Palace on my 2nd visit to Seoul in 2012. I've also previously visited Geongbokgung Palace, which is the most famous one, and Deoksugung Palace, a smaller palace located in the middle of the city, but I have to say Changdeokgung is the one that impresses me the most. I was influenced by the drama Rooftop Prince in which the palace it apparently took place in was Changdeokgung (although it was actually filmed elsewhere). If you're reading this at buzz KOREA, click on the original URL to see more pictures.
I've been to Korea for like 4 times in just 2 years and every time I'm there I never get bored. I just love the country especially the big cities. I thought instead of sharing my travel itinerary, I'd share things by the places I went. So I'm gonna start with Bukchon Hanok Village. I've seen and read about this place being a recommended visit when I'm in Seoul. However, only the 4th time I went that I finally get to go there. While my mum was working at a convention at COEX, I set out on my own in search of the village.
I went to Nami Island for the 3rd time on my last visit to Korea a few weeks ago. It's not because I love it so much that I wanted to go again and again. It's just because every time I go there, I was with different people and they always want to go Nami Island. I guess it's a must visit for at least once if you ever go to Korea.