Introducing the popular "Railway" quiz app.
I have a wide range of questions from my knowledge of railways.
There is a world of "railway" that you do not know yet.
From simple problems to maniac problems,
How many questions can you solve? Aim to get all the questions correct.
It is an unofficial app.

[Recommended for such people]
・ "Railway" fans
・ Those who want to know more about "railway"
・ Those who are confident in their knowledge of "railway"
・ Those who want to have fun in their spare time
・ Those who want to play a quiz app
・ Those who want conversation topics