Google Street View is now available for the platforms and concourses of 13 Tokyo Metro Co. subway stations.

With the new service, which was introduced Monday, users can check underground routes at the terminals in advance.

The stations are Akasaka, Akasaka-Mitsuke, Asakusa, Ueno, Gaienmae, Kojimachi, Shinbashi, Tatsumi, Tameike-Sanno, Tokyo, Toranomon, Nishi-Shinjuku and Roppongi.

Tokyo Metro is planning to add the new feature to other stations on its network of 179 stations as soon as image recording is done.

The operator also indicated it would utilize Google Street View for its official smartphone app development, with plans to conduct tests at Ueno, Asakusa, Tokyo and Roppongi stations from mid-June until September.

In April 2017, interior images of JR's Shinjuku, Tokyo, Nagoya and Kyoto stations first appeared on Google Street View. So far, more than 300 stations and airports from Hokkaido to Okinawa have become available on the service.