Aerial views of tight concrete buildings of a big city with the mountain in the background covered with dark clouds in the daytime

architecture big city building building construction building exterior buildings business capital car city life city of islamabad concrete construction crossing crowded traffic downtown islambad city cityscape structure polution human living famous avenue highway infrastructure intersection landmark landscape large cities metropolis metropolitan old building state avenue street roads transport transportation travel urban urban landscape urban landscape architecture vehicle wall painting concerete margala hills sky clouds g11 pakistan