> Which of the following cities is a capital of a country?And the answer is: Abu Dhabi.Photo courtesy: Supplied.As the capital of the United Arab Emirates (UAE), AbuDhabi is located on an island in the Persian Gulf and is home to about 1.4million people. If you list all of the world's capital cities alphabetically,Abu Dhabi comes in first.The city is a hub of commerce, culture and rapid urbanization. Upon thediscovery of oil and gas reserves in the early 1960s, Abu Dhabi's politics andeconomy experienced a revitalization. Though the city's modernization beganslowly due to the conservative policies of the ruling party, Abu Dhabi boastedelectricity, running water, and a central sewerage system, not to mention themodern government buildings, hotels, housing projects, and new port extensionthat were all built by 1968. Abu Dhabi officially became the capital of the United Arab Emirates in 1971.After gaining official independence from Britain, the city and nation began togrow immensely. At the beginning of the 20th century, Abu Dhabi’s population wasestimated at 6,000, but now it reaches into the millions. Abu Dhabi is known as the cultural heart of the UAE, enthusiastically marketingcultural and sporting events that represent its past. Sports include camelracing and dhow sailing, and cultural activities include Arabic poetry, dancesand music. Some of the most popular destinations in the city are its beautiful,ancient mosques and other religious sites. Take a trip through UAE's capital city below.