Photographer Brings Urban Nightscapes To Life

They say New York is "the city that never sleeps," but photographer Aaron Keigher's got a theory that no city ever really sleeps either. Just watch the lights come on as the sun goes down! He's visited more than 15 of America's most famous urban centers to film this breathtaking transformation from day to night.

See them all in Aaron's stunning, time-lapsed homage to cities everywhere.