Barcelona has a Castle!
On our first day Greg and I saw a gondola going up to a cliff overlooking the ocean. We then found out there was a castle on top, so obviously seeing it became a high priority. In addition there's a lot of other things around, so I started at the bottom near the Catalonia art museum and worked my way up. Along the way some thunder was heard off in the distance, luckily it only sprinkled. At one point I was hanging out in a gardeners shed playing games on my GPS unit waiting for the light rain to pass over.
It's funny looking at tracks after the fact and seeing where I had to double back. This time it seemed there was a lot more of that, I kept dead ending at a playground, or a restaurant, or pretty much any other random reason.
I did come across a zip line, which was hella cool.