30 st mary axe, altitude, bridge, buildings, canada, canada square, canary wharf, chicago, chicago loop, clouds, england, france, great britain, height, high-rise buildings, house, illinois, light, lighting, lights, london, manhattan, metropolis, midtown, new york, new york city, night, nyc, ontario, panorama, paris, river, singapore, skyscraper, skyscrapers, strait, sunset, the empire state building, toronto, tower 42, town, twilight, united kingdom, united states, usa, willis tower, winter