A Silicon Valley-backed initiative to build a 'green city' for up to 400,000 people on farmland in the San Francisco Bay Area has been put on hold in an embarrassing reversal. The city would have ...

Senegal is building a massive £1.6bn utopian city in a bid to ease the residential and commercial clutter in the capital of Dakar. Diamniadio Lake City is a government-approved futuristic ...