Porto, also Oporto in English, is Portugal's second city and capital of the North region. The city is located in the estuary of the Douro river in northern Portugal. The largest city in the region, Porto is considered the economic and cultural heart of the entire region.
Ribeira, the historic Centre of Porto, has been declared a World Heritage Site by UNESCO (1996). One of Portugal's most internationally famous products, Port wine, was named after the city because it was originally shipped from the area, or, more precisely, from Vila Nova de Gaia, a city just across the river which belongs to the same conurbation. The country was also named after the Latin name of this city, Portus Cale.

_{From wikipedia[link]}






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