In Seoul, the subway is the easiest and fastest way to get around. Reminds me of the London subway, however, if I'm able to remember the name of ONE station I'll be very proud of myself.
Point in case:
Eleven different lines to choose from, I'll probably pick my favorite color and see where I end up. Although I would like to go to Bukchon and look at the Hanok village - which is a village of traditional korean -style houses.