A hotel employee serves green vegetables cultivated in the hydroponic box (background) at a restaurant in the smart city project at Kashiwanoha in Kashiwa city, suburban Tokyo on July 7, 2014. Japan's leading developer Mitsui Fudosan displayed the next generation smart city of Kashiwanoha, which includes a residential area, large shopping mall, hotel and two national universities, as a model city of advanced energy management system.   AFP PHOTO / Yoshikazu TSUNO        (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)