There are certain things that you just know are going to taste great; you don’t even need to try them. One of those things? A dish that’s actually really popular here in Madrid called chocolate con churros (which is churros with a cup of thick, rich hot chocolate for dipping).
Thanks to something called the Schengen Agreement, most of Europe is essentially like one big country for travel purposes. Completely open borders.
So here’s a weird thing about the subway system here in Porto: it seems to be run on the honour system. There are no gates anywhere; there are machines to load up your swipe card with the fare for a ride, and there’s these little card scanners around each station that (I think) you’re supposed to swipe before you get on a train and when you transfer, but that’s it. I’ve never actually seen anyone confirming that passengers have paid their fare. It’s weird.