The Freixo Bridge is a road bridge that connects Vila Nova de Gaia to Porto, over the river Douro, in Portugal. Of the bridges that connect Porto to Vila Nova de Gaia, the Ponte do Freixo is the most upstream of the river Douro. Project by Prof. António Reis, the Ponte do Freixo was built in an attempt to minimize the congestion to the automotive traffic experienced in the Pontes da Arrábida and Louis I, especially notorious since the late 1980s.

The São João Bridge is a railway infrastructure that transports the Northern Line over the Douro River, near the city of Porto, Portugal. Built to replace the already centenary Ponte D. Maria Pia, it entered service on 24 June 1991.1]

The D. Maria Pia Bridge is a railway infrastructure that transported the North Line over the Douro River, between the towns of Porto and Vila Nova de Gaia, in northern Portugal. It was inaugurated on 4 November 1877[1] and closed on 24 June 1991, having been replaced by the St. John Bridge.[2] It is considered, along with the Viaduct of Garabit, as the greatest masterpieces executed by engineer Gustave Eiffel.At the time of its inauguration, it was the bridge with the largest iron bow in the world.[4] It has been classified as a National Monument since 1982.5]

The Infante Don Henrique Bridge, also known as the Infante Bridge, is a highway bridge that connects Vila Nova de Gaia to Porto, over the river Douro, in Portugal. Baptised in honor of Infante D. Henrique, born in Porto, is the latest bridge that connects Porto and Gaia. It was built to replace the upper board of the Louis I Bridge, while converted for use in the "Yellow Line" (Hospital de São João/Santo Ovídio) of the Metro of Porto.

The Ponte D. Luís I (or Ponte Luiz I, in the original graffiti inscribed therein), is a bridge in metal structure with two boards, built between 1881 and 1886, connecting the cities of Porto and Vila Nova de Gaia (northern and southern bank, respectively) separated by the river Douro, in Portugal. This construction came to replace the old pencil bridge that existed in the same place and was realized through the project of the Belgian engineer Théophile Seyrig, who had already collaborated with Gustave Eiffel in the construction of the D. Maria Pia Bridge, a railway plant.

Plaza da Ribeira is a historic square located in the neighborhood of São Nicolau, in the present parish of Cedofeita, Santo Ildefonso, Sé, Miragaia, São Nicolau and Vitória, in one of the oldest and most typical areas of the city of Porto, in Portugal.

The Arrábida Bridge is a bridge over the Douro River that connects Porto (by the area of Arrábida) to Vila Nova de Gaia (by the node of the Candal), in Portugal. Since the 1930s it was necessary to create alternative connections to the old bridges (bridges D. Maria Pia and D. Louis) in order to respond to the growing flow of road traffic. At the time of its construction in 1963, the bridge had the largest armed concrete bow of any bridge in the world.

The Farolim de Felgueiras, also known as Farol de Felgueiras, Farolim do Molhe de Felgueiras or Farolim Cabeça de Molhe, is a Portuguese lighthouse on the right bank of the River Douro, located at the end of the mole of the same name, in the parish of Foz do Douro, City of Porto. It is a hexagonal tower in apparent granite masonry, ten meters high. It features a red balcony and lantern, and a small annexed building with white-painted walls. The designation 'Molhe de Felgueiras' was attributed to it because it was built towards the stone of Felgueiras, which borders it to the west.