--> 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 The Douro Railway Diógenes & Santos - Porto Porto Macdonalds View from Miradouro do Porto Torre dos Clérigos detail River Douro in Porto at Night