PokeStops are the places where players can gain XP and get items such as Pokeballs and Potion items from. The followings are the pages noting the details and the rolls of PokeStops.
Pokemon Go can be enjoyed anywhere. However, there are definitely disparities between urban and rural area. This page shows the differences examined in Japan.
PokeStops found in the real world
Why did they choose the costume?
One of the obvious reasons is to surprise Pokemon Go players. This cosplay can be found around the world now, but note that mostly these are handmade.
In Japan
Kitamura Jin, a Japanese writer and illustrator, also created the PokeStop costume and he is in it. Additionally, he build PokeStop objects in Akihabara and Ueno Park.