Valencia is the capital of the autonomous community of Valencia and the third-largest city in Spain after Madrid and Barcelona, with around 800,000 inhabitants in the administrative Centre. Its urban area extends beyond the administrative city limits with a population of around 1.6 million people. Valencia is Spain's third largest metropolitan area, with a population ranging from 1.7 to 2.5 million depending on how the metropolitan area is defined. The Port of Valencia is the 5th busiest container port in Europe and the busiest container port on the Mediterranean Sea. The city is ranked at Beta-global city in the Globalization and World Cities Research Network.