Leaving Salamanca for Portugal, we had good 4-lane roads most of the way. Crossing the border into Portugal, we drove over the mountains toward Lisbon, then headed North toward our destination, Porto, famous as the home of Port wine, and second largest city in the country. It was a fairly long drive (around 5 hours), but as we entered Porto, things went a little sideways for us. The city is bigger than we expected, and our knowledge of Portuguese is more limited than our understanding of Spanish, so we had more trouble reading signs. We crossed the Douro River, then became quickly confused as to where to go. Eventually we saw a sign reading "Centro Comercial." We assumed that meant the road would take us to the center of the city, which is essentially where we
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