An African nation has released details of a hugely ambitious project in which it intends to build a 'smart eco-city' from scratch that will cater for 137,000 residents and 500,000 commuters. The innovative project is being developed in Nigeria - and the new 'smart eco-city' will be located just outside the Nigerian capital of Abuja which is just a short drive from the Nnamdi Azikiwe International Airport.