Aa Design Museum
This is a really cool cafe that has a museum on the bottom floor and a cafe up top. Its sleek and modern styling and fashionable clientele make you feel like you are in Manhattan. They have decent wine prices (35-60,000) and bistro/cafe style food like paninis, salads, and cakes. I had the chicken salad there and it was fresh and flavorful for W12,000. They also have Hoegarden and Guinness on Tap. If you go to Bricxx in Hongdae, go down and make a left on the next road.