U-Bahn Tokio
In Japan existieren 11 U-Bahnen: U-Bahn Fukuoka, U-Bahn Kōbe, U-Bahn Kyōto, U-Bahn Nagoya, U-Bahn Osaka, U-Bahn Sapporo, U-Bahn Sendai, U-Bahn Tokio und U-Bahn Yokohama.