--> One of several impressive buildings that form the street corners on Porto's Avenida dos Aliados. The Avenida is considered the proper centre of Porto and is overlooked by the town hall Posted by Travel in Portugal on Sat, 21/12/2013 - 21:17 × Related images River Douro View from Ribeira to Arrabida - Porto Town Hall Detail - Porto Porto rooftops and churches Porto's Ribeira Porto Beachfront from the Barra do Douro Modern Porto - Boa Vista shops