Abu Dhabi is the capital of the emirate of the same name, largest of the seven emirates of the United Arab Emirates. It is said to be the richest city in the world and is located in the north central UAE. The city lies on a T-shaped island jutting into the Persian Gulf from the central western coast. At the head of Abu Dhabi and across from the Corniche is Lulu Island - a semi-natural landmass that is arguably the most strategic and valuable piece of property in the Emirate.