5.London
The UK capital also scored relatively high across the board. London has been well-recognized for some of its sustainability innovations (i.e. congestion tax) and its robust transit system. The city will soon be home to Smart Cities research center housed at Imperial College, which will leverage transport, government, business, academic and consumer data in hopes of making the city more efficient and innovative. Just the other day, London announced a partnership with O2 to launch the largest free Wi-Fi network in Europe.