The historic center of Porto was declared a World Heritage Site by UNESCO in 1996. The World Heritage Site is defined in two concentric zones; the "Protected area", and within it the "Classified area". The Classified area comprises the medieval borough located inside the 14th-century Romanesque wall. In 2001, Porto, alongside Rotterdam, was the European Capital of Culture for the entire year. For this event, several urban projects, from urban requalification to new infrastructures and public transportation, were put into practice.
The historic center of Porto was declared a World Heritage Site by UNESCO in 1996 The World Heritage Site is defined in two concentric zones; the "Protected area" and within it the "Classified area" The Classified area comprises the medieval borough located inside the 14th-century Romanesque wall In 2001 Porto alongside Rotterdam was the European Capital of Culture for the entire year For this event several urban projects from urban requalification to new infrastructures and public transportation were put into practice