D. Luis I Bridge

The grand Luís I Bridge was designed by Teófilo Seyrig, who was a disciple of the famous French engineer Gustave Eiffel. It was inaugurated in 1886. It's composed of two overlapping wrought iron decks. It is 395 meters long and 8 wide, and the arch remains the world's longest spanning wrought iron arch. The famous monument, which was built next to the old Pênsil Bridge, offers a privileged view of the houses of Ribeira do Porto, but also, of the Cais de Gaia, the Monastery of Serra do Pilar and the famed Porto wine cellars. It's an obligatory passage point for any tourist visiting the historic center of the city, classified as World Heritage by UNESCO in 1996. During the summer, it is impossible to resist stopping along the bottom deck to watch the kids of the Ribeira dive in the Douro. Using the top deck, the Metro do Porto links the area of the Sé Cathedral in Porto, to the Garden of Morro and to the Avenida da República in Gaia.