Central Star is a large building with three separated arenas. The first and most majestic one is the soccer arena which is has an open roof and is located in the center of the and easy accessible from more than 15 different entrances. On each side of the big building there is a large room featuring one basketball on one side and on the other side a magnificent concert hall.
We couldn't find any trace of this being a replica of a real life arena so our conclusion is that it's all built based on the creator's imagination. Taking that into consideration makes the creation quite amazing.
The concert hall can be found on the right side of the building.
The basketball arena can be found on the left side of the building.
(Map name in-game: Avrin Country)