Ключевые слова: amphitheater, architecture, arena, attendance, audience, background, bench, blank, blue, building, chair, collection, competition, concept, concert, empty, entrance, exterior, fans, fence, football, game, gate, group, horizontal, indoor, many, match, multiple, nobody, outdoor, plastic, public, recreation, row, seat, seating, section, sector, set, sit, soccer, sport, stadium, staircase, stairs, stand, steps, theater, tribune,