europe, portugal, porto, city, european city, ribeira, old town, old city, square, landmark, river, douro, douro river, waterfront, boat, ship, transport, export, import, shiping, Porto, Portugal, metropolis, landmass, transportation, district, stream, urban area, vehicle, craft, meaning, city district, european country, significance, urban center, port, rectangle
a transport ship at the waterfront with the old town on the Douro River in Ribeira in the city centre of Porto in Porugal in Europe.