 The stadium where Hitomi first meets Folken and is drawn into the  world of Gaia is modeled on the historic and famous Kasumigaoka  National Olympic Stadium (Kokuritsu Kasumigaoka Rikujo Kyogijo) in  the Shinjuku ward of Tokyo, where the 1964 Summer Olympics were  held. Some of the most distinctive elements in the stadium, such as  the colored rows of seats, large scoreboard, lights, and field track  are directly visible in the film. Another visible Shinjuku landmark  in the film is the Tokyo Metropolitan Government Building, which  Hitomi sees from the train while she is out shopping with her friend  Yukari.