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A major engineering center of America
Dark clouds over a huge city
A densely populated city of gray color
These twin skyscrapers were built in one day
A glowing skyscraper by the blue ocean
Reflection on the water of a skyscraper
A look from a height at a modern metropolis
Modern urban architecture of Europe
The city of Europe at sunset
Two buildings near the river
Tall buildings on a gray background
Night city lights in the USA
