Porto, Portugal, is one of the oldest European centres, and registered as a World Heritage Site by UNESCO in 1996. …
This “city of bridges” was built along the hills overlooking the Douro river estuary …
I made the most of my one free day in Porto, taking several walking tours. It’s very photogenic.
See all of my Porto pics in flickr High Res.
I’d arrived from Antwerp, another of the 6 charming and affordable European cities you haven’t visited yet.
Rick McCharles 