Visit the Porto Cathedral (Portuguese: Sé do Porto) is a Roman Catholic church located in the historical centre of the city of Porto, Portugal. It is one of the city's oldest monuments and one of the most important local Romanesque monuments. Unlike what's often written, the current Cathedral of Porto was not built under the patronage of Bishop Hugo since the pre-Romanesque church is still mentioned in the De Expugnatione Lyxbonensi as still extant in 1147. This means the present building was only started in the second half of the century and it would be constantly under works well until the 16th century (without counting later Baroque and 20th century interventions), but there is evidence that the city has been a bishopric seat since the Suevi domination in the 5th-6th centuries. The cathedral is flanked by two square towers, each supported with two buttresses and crowned with a cupola. The façade lacks decoration and is rather architecturally heterogeneous. It shows a Baroque porch and a beautiful Romanesque rose window under a crenellated arch, giving the impression of a fortified church. The Romanesque nave is rather narrow and is covered by barrel vaulting. It is flanked by two aisles with a lower vault. The stone roof of the central aisle is supported by flying buttresses, making the building one of the first in Portugal to use this architectonic feature.

See the architectural complex of Clerics, considered a National Monument since 1910, is one of the main points of interest for its Tower, Museum and Church, and a must-see location for all those who visit the city of Porto. The church and the Tower are part of a baroque-inspired building from the 18th century, which marked the city's urban configuration, located on an uneven street, but brilliantly used by Nicolau Nasoni, who managed to create a landmark building. The Church and the Tower are adjoined to the House of the Brotherhood, which since 2014, after it became a museum, is open to the public.

See the Porto bridges (or pontes, in Portuguese) - are definitely the most appealing ones in the country. There are currently 6 over the river Douro. But their history traces back further, and even to other non-existent bridges! Inaugurated 31st October 1886 and idealized by Théophile Seyrig (BE) (Socièté Anonyne de Construction de Willebroeck) Behold, the most emblematic of Porto bridges! This is a truly Porto bridge, since it connects both levels of the city, as well as downtown Porto and Gaia.

Visit Gaia along the Douro River and see with your eyes the houses of the historical centre of Porto. On riverbank - The historical centre and the Ribeira area are filled with monuments for you to visit. The São Francisco Church is worth a visit, as it is a classified a national monument that once belonged to the Convent of Frades Observantes of São Francisco. Be sure to look at the 17th and 18th century gilded woodcarvings, the murals, the paintings on wooden panels in the presbytery, and the 16th century tombs. Sit in one of the street cafés in Cais da Ribeira, watch the boats sail by, listen to street music and try to identify in the landscape the Port River, between the Porto and Gaia riverfronts.

Visit São Bento Railway Station in Porto that was opened to the public in 1916 on the site of a former Benedictine monastery. The structure emanates the city’s typical melancholy and nostalgic air. Although the train station is striking from outside, the real beauty lies inside. The main hall is breathtaking with over 20,000 tiles that reflect the history of Portugal. São Bento Railway Station is in the city centre, so you’ll probably walk past it several times during your stay. Don’t miss discovering its main hall.

Cais da Ribeira -A little chaotic and great fun to explore, Porto’s riverside area is a very picturesque piazza where tourists and locals mingle. There are bars and restaurants around every corner, and these line the riverside walk too. You’ll have a perfect shot of the iconic Luís I Bridge from here, and if you duck through the arcades there’s a confusing maze of steep streets and stairways between pastel-painted houses in varying states of repair. The Cais da Ribeira has been spruced up a little in the last few years and information boards have been installed to tell you about this district’s characters and businesses when it was Porto’s hive of commerce. On the slopes above the Douro Estuary, Porto is a historic mercantile city with business and trade written into its very name. The centre is a World Heritage site, and you’ll be struck by how rich and varied this heritage can be: There are medieval walls, gleaming Baroque churches, the compact streets of the Ribeira district, the Romanesque Cathedral and that’s just the beginning. Fortified port wine is still stored in warehouses on the south bank of the Douro, and if you track the river to the ocean you arrive at the stylish Foz do Douro district for beaches and hip restaurants.

Must visit Lonely Lello Bookstore is the third most beautiful library in the world. The store has an excellent neo-gothic façade, where you can see two figures painted by José Bielman, representing the Science and the Art. This facade is only surpassed by its stunning interior, designed by Xavier Esteves. The building was inaugurated on January 13th, 1906, in an important social event for both Portuguese and Brazilian societies, attended by famous people from different spheres – among them Guerra Junqueiro, a renowned Portuguese writer. As you walk through the doors of this bookstore you’ll notice that there is a marvelous stairway and the wooden walls are also very exquisite. The stained glass ceiling adds an amazing detail with Lello’s motto “vecus in labore”. Rumor has it that J.K. Rowling’s inspiration to write Harry Potter has begun in Porto, particularly at this library. The well-known writer lived in Porto for 10 years working as an English teacher in the early 1990s and she used to drink a cup of coffee at the second floor of Lello’s bookstore. There are indeed great similarities between Lello’s bookstore staircase and the one described in Hogwarts. It is also believed that the Hogwarts’ costume was inspired by the costumes of college students in Portugal, composed of a black suit and a black coat – these students are very likely to be found around this area, as the headquarters of the Porto University are located at Praça Gomes Teixeira (up ahead, where you can find a Lion’s fountain, hence the nickname “Praça dos Leões” – Lions’ Square, as the locals call it).

See the Cais da Ribeira is a raised embankment leading away from Praça da Ribeira (Ribeira Square) toward the Ponte de D. Luís I. If you head west, the promenade raises further and narrows down a bit, turning into the Muro dos Bacalhoeiros, which is wedged between the riverside and a bevy of polychromatic buildings huddled together in mass. The walkway offers impressive views of the opposite bank. The entire area is littered with places to lunch and dine, from the wider embankment (closer to the bridge) to the tapering streets heading away from Praça da Ribeira toward the Casa do Infante and the Igreja de São Francisco. Praça da Ribeira, waterfront with the same name, is the central hub, at the bottom of Rua de São João, right next to the river. The Tripeiros refer to the praça as ‘Cube Square’ because of the large cube residing there, sculpted by José Rodrigues. The bronze sculpture rests inside a fountain where pigeons often come to bathe.