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Porto also known as Oporto, is the second largest city of Portugal. It located in the estuary of the Douro river, in northern Portugal. The historic centre of Porto was declared a World Heritage Site by UNESCO in 1996.
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Porto also known as Oporto, is the second largest city of Portugal. It located in the estuary of the Douro river, in northern Portugal. The historic centre of Porto was declared a World Heritage Site by UNESCO in 1996.
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