The maps run on 47-inch LCD panels that have been installed at Ginza station in the heart of the city. Three subway lines intersect at the station, which serves around 275,000 people each day heading to and from one of Tokyo's busiest shopping and entertainment districts.

As well as big department stores the area is home to numerous boutiques, cafés, bars and small shops that can be hard to find, especially with 32 exits from the station to choose from. In short: It's a great place to try a high-tech map system.