Porto (Portuguese pronunciation: [ˈpoɾtu]), also known as Oporto in English, is the second largest city in Portugal and one of the major urban areas in the Iberian Peninsula. Its administrative limits (an area of 41.66 km²/16 sq.mi) include a population of 237,559 (2011) inhabitants distributed within 15 civil parishes. The urbanized area of Porto, which extends beyond the administrative limits of the city, has a population of 1.3 million (2011)[4] in an area of 389 km2 (150 sq mi),[5] making it the second-largest urban area in Portugal. The Porto Metropolitan Area includes approximately 1.7 million people,[6][7][8] and is recognized as a Gamma-level global city by the Globalization and World Cities (GaWC) Study Group, being one of the four cities in the peninsula with global city status (the others being MadridBarcelona and Lisbon).

Read the blog: http://www.eurodestination.com/Short%20Breaks/porto-a-city-of-contrasts.htm
http://en.wikipedia.org/wiki/Porto