Culture Arena
Portugal · Geography · Hard
Which Portuguese river has its source in Spain, flows through the city of Porto, and has a valley that is a UNESCO World Heritage site?
Answer: The Douro — The Douro rises in the Sierra de Urbión in Spain, flows west through Porto, and its upper valley (Alto Douro Vinhateiro) is a UNESCO site.
- A The Guadiana
- B The Douro ✓
- C The Mondego
- D The Tejo
The Douro rises in the Sierra de Urbión in Spain, flows west through Porto, and its upper valley (Alto Douro Vinhateiro) is a UNESCO site.