I think High Line in Manhattan is the best example of the re-use of rail facilities. In Japan? Yes, we enjoy similar ideas!
This is a shopping complex which used to be Manseibashi Station very very long time ago. The red brick architecture was built in 1912. The station was closed in 1943 because the number of passengers decreased and it was turned into Railway Museum in 1948. The facility got old and deteriorated so the museum was relocated to Saitama. The historical building then became an attractive space where you can enjoy shopping and having coffee.
Address: 25-4 Kandasudacho 1-chime, Chiyoda-ku, Tokyo
Opening hours: 11am-9pm (Sun. close at 8pm)
2k540 AKI-OKA ARTISAN
Strange combination of numbers and an alphabet means this place is 2.540km away from Tokyo Station which is the center place for the railway system in Japan. AKI and OKA stand for Akihabara and Okachimachi, the names of two stations between which this facility stretches.
Underneath the elevated railway tracks (which of course operate today for JR Lines), there are galleries, workshops, cafes and shops. This is the place where the traditional and modern technology and craftwork gather.
Address: 9 Ueno 5-chome, Taito-ku, Tokyo (between Akihabara and Okachimachi Stations)
Opening Hours: 11am-7pm (depends on shops) closed on Wed.
These two places are relatively close each other so you can enjoy walking and biking to get there.