Stretched across the Atlantic coastline, the picturesque Portuguese city of Porto is renowned for treasures from three eras of architecture – gothic, baroque, and modern – as well as the Douro River winding its way down to the ocean.

Porto, Portugal’s second-largest city, lies just a four-and-a-half-hour flight from Istanbul to the Francisco de Sa Carneiro Airport, some 11 kilometers from the city center, serving 10 million passengers annually.

Venetian Gondolas, meet Porto’s rabelos

The Douro River, a once-busy transport artery also known as the “golden river,” snakes its way through the city to meet the Atlantic shore, and

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