Link at infomapjapan: PDF of Tokyo Subway Route Map
Japanese subway route maps show an interesting detail: each station has its own number. I didn’t see such system on any other subway map in Europe or USA, there are only station-names. I experienced, that numbers are really helpful for visitors, which are not familiar with the many names and maybe also can’t pronounce them well. It’s easier to memorize the number for to get off at the right moment. And with making a countdown (or ~up) from station to station you would quickly recognize, if you ride into the wrong direction. よくできました！
