Moscow is the capital and most populous city of Russia, with approximately 15.1 million residents within the city limits, 17 million within the urban area and 20 million within the metropolitan area. Moscow is one of Russia's federal cities.
Moscow is a major political, economic, cultural, and scientific center of Russia and Eastern Europe, as well as the largest city (by area) on the European continent. By broader definitions, Moscow is among the world's largest cities, being the 14th largest metro area, the 18th largest agglomeration, the 14th largest urban area, and the 11th largest by population within city limits worldwide. According to Forbes 2013, Moscow has been ranked as the ninth most expensive city in the world by Mercer and has one of the world's largest urban economies, being ranked as an alpha global city according to the Globalization and World Cities Research Network, and is also one of the fastest growing tourist destinations in the world according to the MasterCard Global Destination Cities Index.