Around 300 artificial islands built by Nakheel off the Dubai coast in the rough outline of the world's continents, sold off as private and resort plots. Begun in the mid-2000s, stalled by the 2009 crash, and only partly developed since.
Visible mainly from the air, it remains the most literal expression of Dubai's reach-for-the-map ambition — and of how some of those bets are still waiting to pay off.