I could have spent the entire day at Namdaemun Market in Seoul. Want a knock-off Moncler vest? What about dollar socks?
When visiting department stores in Seoul, I skip the upper floors and head straight down to the basement where the food court and markets can usually be found.
The only other time I visited San Francisco was when I was in elementary school and my family drove up the west coast, so the city is all fairly new to me.