The Tōkaidō Main Line is a major Japanese railway line of the Japan Railways Group network, connecting Tokyo and Kōbe stations. It is 589.5 km (366.3 mi) long, not counting its many freight feeder lines around the major cities. The high-speed Tōkaidō Shinkansen largely parallels the line.

Tōkyō Station is a major railway station in Chiyoda, Tokyo, Japan. The original station is located in Chiyoda's Marunouchi business district near the Imperial Palace grounds. The newer Eastern extension is not far from the Ginza commercial district. Due to the large area covered by the station, it is divided into the Marunouchi (west) and Yaesu (east) sides in its directional signage.