Chicago cityscape, looking north from Willis Tower, Chicago, Illinois, United States of America, North America

photography vertical outdoors outside day daytime willis tower chicago illinois usa us united states united states of america america american north america north american travel destination travel no people no one nobody building exterior building buildings architecture architectural urban scene urban cityscape cityscapes city scape city scapes skyscraper skyscrapers sky scraper sky scrapers city cities high rise highrise high rise high angle view high angle from above lake michigan lake water tourist destination