South Korea
Huge concrete building packed with market stalls selling fish.
Fresh stuff gets snapped up early (4am) in the morning by chefs, but whatever time you get there you can choose your catch and have restaurants in the same building cook it up for you.
Prices are marked so you won't get ripped off (although there's always a little room for haggling) and it's all very photogenic.
Subway Line 1- Noryangjin station (follow the map in the subway station when you arrive).
Though this area near to the US army base has been called a special tourist zone and is praised for it's international shops, it's really the place where sellers try and hawk tacky Korean gifts and American clothes to the (mostly) American tourists. There are many other markets which are more representative of Seoul and are pretty much only frequented by locals.
Search Been there