1 week in Portugal
Portugal is ideally set up for rail travel. It’s a long, slender country on the far west side of Europe - this makes north to south (or south to north) rail travel particularly easy. 1 week in Portugal will give you enough time to get an overview of the country’s top sights. You'll get to see the likes of Porto, Lisbon, and a few smaller towns and villages in between.
Port wine, bridges, and wooden trams in Porto; University of Coimbra; castle and walled town of Óbidos; nightlife, food, history, and architecture in Lisbon; a glimpse of the laid-back coastal lifestyle on the Costa do Sol.