The Greater Tokyo Area, also known as Capital Region in Japanese, consists of Tokyo metropolis and the prefectures of Chiba, Gunma, Ibaraki, Kanagawa, Saitama, Tochigi and Yamanashi, including large cities like Yokohama, Saitama, Chiba, Kawasaki and Sagamihara. Public Transport within Greater Tokyo is dominated by the world's most extensive urban rail netwok of suburban trains and subways run by a variety of operators. Try to name the railway lines as many as you can!
Shinkansen (bullet train) not included
Cable cars not included
Freight rails not included
Also try Chinese Version https://www.jetpunk.com/user-quizzes/1629360/every-operating-rail-line-in-greater-tokyo-area