There's an object of the conductor from Galaxy Express 999, and benches on either side that are designed to look like the seats from the train.
It was set up because the original author, Leiji Matsumoto, is from Kitakyushu City.
The seats are cushioned and comfortable, but it's a photo spot, so you probably won't want to stay there too long.
However, when I took the photo, a middle-aged man was sitting there for a long time...