Before heading home from Japan, I finally made it to the Tsukiji fish market - one of the largest wholesale fish markets in the world.
It was an amazing experience. Every kind of sea food as far as the eye can see. There was also an enormous tuna auction, where after each fish was sold, a guy with long metal hooks would get a good grip on the fish and then hoist it up onto a tram. (I arrived basically too late to see the auction, but attached myself to a group of retired Israeli tourists who pushed their way in.)
There were also lots of other kinds of fruits and veggies sold, including Japanese eggplant!