"Train Museum" is located on the bridge near Nippori Station. But, there is no building. From overpass you can observe about 20 types of train. So, this view spot is now called "Train Museum".
Nippori is the station of JR East and Keisei Electric Railway. There is also the terminal station of "Nippori-Toneri liner" which was opened in 2008.
A lot of train passes the Nippori. For example, JR Yamanote Line of Joban Line, Keihin Tohoku line will pass through there. From "Museum", you can also see the train of the Tohoku Shinkansen.First stop station of limited express "Skyliner" Keisei line connecting the Narita Airport ~ Ueno Station is also Nippori.
A lot of railway fans and children have visited the Nippori. If you like railway, you'll spend a good time.