Barcelona is the capital and the most populous city of Catalonia and the second largest city in Spain, after Madrid, with a population of 1,621,537 within its administrative limits on a land area of 101.4 km2 (39 sq mi). The urban area of Barcelona extends beyond the administrative city limits with a population of over 4,200,000 on an area of 803 km2 (310 sq mi), being the sixth-most populous urban area in the European Union after Paris, London, Ruhr area, Madrid and Milan. About five million people live in the Barcelona metropolitan area.[ view all ]