The Porto Cathedral is one of the most important tourist sights in Porto and a historical and architectural landmark of the city at the same time. It is generally deemed one of the most impeccable embodiments of the Romanesque style, though, if truth be told, it is rather a mix of styles and influences with a notable overall Romanesque dash.
But this is no surprise, given the age of the cathedral. The edifice was built between the 12th and the 13th century.