Title: Kōen, yūenchi, dōbutsuen, suizokukan
Subjects: Parks, History, Zoos, Amusement parks, Aquariums, Urban beautification, Tōkyōto-Rekishi, Dōbutsuen, Suizokukan, Yūenchi, Kōen
Places: Japan, Tokyo, Tokyo (Japan)
Time periods: 20th century