Empire State Building, New York
http://photography.nationalgeographic.com/photography/photo-of-the-day/empire-state-building-night-new-york/
In the city that never sleeps a new awareness about energy means
the Empire State Building now uses bright lights
at night only to celebrate holidays and special events.
And power-hungry Manhattan has generating potential of its own:
A tidal-energy project under development
in the swift-flowing East River could power a thousand homes.
