You Can't Get There from Here.
Riding the Tokyo Metro can be an adventure for the newcomer. Here's one mistake I made. Most stations have two tracks - one for each direction. The platform is either between the tracks on or either side of the tracks. In the latter case, there is sometimes a tunnel between the platforms so you can get from one side to the other. Some stations don't have this tunnel. After going to a hobby shop near the Ginza line's Suehirochou station, I went back to the station through the same entrance I used before. Without thinking, I bough my ticket, passed through the wicket, and then realized that the trains arriving on the platform were going the wrong way. There was not way to get over to the other platform! I suppose I could have gone to the next large station and hoped there was a crossover. The better choice was to explain to the station agent what I had just done: "I made a mistake. I just bought this ticket but I want to go to Kanda". He let me back through the wick...