Ключевые слова: action, active, adventure, america, attraction, attractions, building, business, center, challenge, chicago, city, cityscape, danger, day, district, downtown, extreme, female, fly, funfair, high, il, illinois, jump, leisure, motion, navy, navy pier, park, people, pier, public, ride, risk, sky, skyline, speed, swing, swinger, tourist, tower, town, travel, urban, usa, view, wave, wave swinger, woman,