Skyscrapper building under a cloudy sky

sky building abstract skyscraper structure exterior tower urban design construction cityscape office center business blue background window city architecture reflectionglass retro scrapper skyscrapers texture view travel perspective urbanlandscape wall urbancity reflection modernoffices architectural new architectureofmodernbuilding cell corporate district downtown elements facade architecturalbackground financial futuristic glass light linesandcells megalopolis modern famouslandmarks