Chicago skyscrapers including the Willis Tower, formerly the Sears Tower, Chicago, Illinois, United States of America, North America

photography horizontal outdoors outside day daytime willis tower sears 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 high rise highrise high rise skyscraper skyscrapers sky scraper sky scrapers tourist attraction urban scene urban cityscape cityscapes city scape city scapes skyline low angle view low angle from below blue sky tall interlandmark tower city cities tourist destination