Porto- View from Cabin Crestuma-Lever Barrage Crestuma-Lever Barrage Broalhos- Natural Gas Power Station Porto Carvoeiro- Dilapidated Buildings Seixinha Sand and Gravel Loading Entre-os-Rios- Ponte de Pedra Tugboat 'Foz Do Vouga' Cargo Vessel 'Joaninha' 'Senhora do Douro' at Regua 'Douro Prince' at Regua Mateus Palace Mateus Palace Mateus Palace Mateus Palace Mateus Palace Mateus Palace Mateus Palace Pinhao- Azulejos Tiles at the Railway Station Pinhao- Azulejos Tiles at the Railway Station Pinhao- Azulejos Tiles at the Railway Station Pinhao- Azulejos Tiles at the Railway Station Porto- Cathedral Porto- '100% Electrico' Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Porto- Azulejo Tile in Sao Bento Railway St… Porto- Azulejo Tile in Sao Bento Railway Station Porto- Cathedral Interior Porto- Rooftops Porto- Tourist Boat Porto- Dom Luis I Bridge Porto- Riverside Apartments Porto- Street Entertainer Porto- Rabelo Boat Porto- View from Vila Nova da Gaia Porto- View from Vila Nova da Gaia Grand Union Canal at Marsworth Grey Heron White Mallard?