"Castle stamp" is a convenient recording application for the journey through Japans top 100 castles.
You can check the location of the castle by using the map in the application, consider the itinerary and use it conveniently.
When you visit a castle, you can record the date and time, and you can also get a stamp that caught your castle.
You can also leave comments for each castle visited. As you can see the comments of other users who visited, it may increase the pleasure of traveling.