Ключевые слова: 2022, architecture, ariake, ariake arena, asia, bay area, building, business, city, cityscape, competition, convention, event, event hall, event venue, exercise, facility, gulf coast, hall, indoor playground, japan, kanto, kanto region, koto ward, multipurpose hall, new, odaiba, public facility, scenery, sports, stadium, tokyo, tourism, tourist area, venue,