The Portuguese city of Porto is best known for two things: its river, the Douro, and its Port Wine. But the historic hillside city itself should not be overlooked. One of the oldest cities in Europe, its maze of steep and narrow cobbled streets is home to beautiful plazas, churches and houses with colourfully tiled façades. Outside the historic heart, the city has witnessed a renaissance, its seaside suburbs increasingly home to world-class contemporary architecture and cuisine.