Supports more magnification.
This software shows old map in Tokyo (1880s).
This software also supports "my location", so you can see the old map where you really stand on (only when you are in Tokyo or Kanto Area, Japan).
This software accesses Map Providing Service ( https://aginfo.cgk.affrc.go.jp/mapprv/ ) and GSI Tile ( https://maps.gsi.go.jp/development/ichiran.html ).
You can enjoy following maps:
"Tokyo 1:5000" - 1:5000 map in Tokyo Central. Created on 1883 (Meiji 16).
"Rapid Survey Map in Kanto Plain" - 1:25000 map in Kanto Plain. Created on 1880 (Meiji 13) - 1886 (Meiji 19).
