It's Hong Kong Harbour Rotated 90 Degrees

Hong Kong has an incredible natural harbour, here reflecting its thousands of skyscrapers.  Its population of over 7 million squeezes into a 426-square-mile (1,104 square kilometre) area; one of the most densely populated places on Earth.  More than 90% use public transportation, the highest worldwide.  Photographed by Stephen Finn.
photo source: Different from CitiesReflectedInWater