The best way to understand the history of a city is to walk through its streets and look at its buildings. The same is true for Tokyo. However, there are only a few places in Tokyo that are still standing. Most of the buildings were destroyed in the Second World War or later. The best way to get a sense of the city is to look at its old buildings.

Stroly is a handy app for people who want to look at the city of Tokyo from the past. It is an application that allows you to see the location of your current position in Tokyo on 17 historic maps. It will help you understand the history of the city and how it looked 100 years ago. You can switch between the 17 maps without leaving the app.