Old and modern skyscrapers, on the left is the Carbon and Carbide Building, Chicago, Illinois, United States of America, North America

architecture building carbon and carbide building chicago city cityscape color image day highrise illinois left low angle view modern nobody north america old outdoors photography skyscraper skyscrapers sunny travel united states united states of america urban vertical window america american americas color colour daytime il metropolitan outside skyline structure sunshine tower us usa us usa