[tkgally]

I did that once about twenty years ago. I was in Seoul for a few days for work, and I had the last day free before my plane out in the evening. Without checking a map or guidebook, I got on the subway, rode a few stops, went up to street level, and wandered around; I repeated this four or five times. Other than one nondescript office district, every area I emerged in was interesting: a wholesale textile market, an upscale residential neighborhood, a lively commercial district. Though I don’t know the names of the places I visited, I still remember them all these years later.