A must-see while in Porto is the São Bento Railway Station. More than just a train station, this place is another architectural jewel, among the many others this city boasts. Built by the Portuguese architect José Marques da Silva in 1900, the São Bento Railway Station opened to the public sixteen years later. Its construction took place on the site that once housed a Benedictine monastery, hence the name São Bento. The architecture has a French Renaissance influence, and even though its facade is already quite impressive, its interior is what leaves visitors truly awestruck. The main hall is beautifully decorated–from the ground to the ceiling — with more than 20,000 "azulejos" (Portuguese tiles), which recount important events of the history of Portugal.

More than just a bookstore, Livraria Lello is a historical and architectural masterpiece in downtown Porto. Opened in 1906, Livraria Lello & Irmão as it is also known combines elements of Neo-Gothic, Art Deco, and Art Nouveau styles that comprise intricate woodwork, a large stained glass window bearing the bookshop monogram with the motto "Decus in labore" (dignity at work, in Latin), and a remarkable red spiral staircase, which starts as one set of stairs and splits into two that join in a circular design. The latter is a huge attraction here since it resembles the Grand Staircase from the Harry Potter films, and considering J.K. Rowling was once a Porto resident, there is a high chance this place might have inspired her. Livraria Lello became so popular with tourists that in July 2015 the store started charging a 5 Euro entrance fee and queues can take over an hour. You can purchase tickets on their website.

Shaped by water and wind, the rocks of Yehliu Geopark attract many to the area. The park and its natural attractions showcase art that has been formed by natural forces over centuries. The place looks almost otherworldly: it's easy to imagine you're walking on the surface of a different planet.