Adventures in Porto, Portugal
Taking the train from Lisbon, Portugal into Porto, Portugal, is one of the most scenic experiences you can get!
The view of the bridge, crossing the 2 cliffs, is a sight to be seen, most definitely.
Walking around in Porto, is a quick and easy experience as well, since it's relatively small, compared to Lisbon. A quick climb up the tower in the center is definitely recommended, to get a birds-eye view of the city, and it's Romanesque red roofs.
The central core has manged to keep it's antiquated buildings in great condition, so you feel like you are really setting foot into an older Portugal from 300-400 years ago.
I definitely recommend Porto, Portugal.