typical portuguese wooden boats, called `barcos rabelos `transporting wine barrels on the river douro with view on villa nova de

architecture barcos barrel barrels blue boat boats bridge building called carrier cask cellar cellars city cityscape culture dock douro europe european exterior famous harbor hill historic historical history iron landmark location luis nautical north northern nova old oporto port porto portugal portuguese rabelos river shore tourism town tradition traditional transport transportation transporting travel typical urban vessel view villa water wine wooden