The New York subway system has one of the best environmental designs of recent years: Coney Island's Stillwell Avenue terminal, one block from the Atlantic Ocean, is topped by a state-of-the-art photovoltaic glass roof.   Kurt Andersen took the F train to the last stop to check it out with architect Greg Kiss. (Originally aired: April 18, 2008)                      Slideshow: Kurt Andersen visits Coney Island's state-of-the-art subway terminal

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