The 7 most "smart" cities of the world

Yet, there are landmark cities around the world that do more for sustainability, self-sufficiency and their development than just switching off the lights for an hour. From Hamburg’s decision to ban bottled water, to the move of Sao Paulo to remove the billboards and the pollution in the streets, these are the cities that adopt far more radical measures for the self-sufficiency and sustainability of a truly liveable big city, which has something to offer its residents.
Hamburg: no to bottled water packaging. Oslo: no cars in the city center
Bogota: expressway buses. Helsinki: smart move mobile. Seoul: free internet in every corner of the city. Milan: compensation to travelers on bicycle. Sao Paulo: no outdoor ads at all.