for the perfect spot to take a photo. If you go to Barcelona, you will visit Parc Gell. You may as well enjoy the view whilst you're there! Castell de Montjuic If you have a convenient hill with a cliff situated next to a large harbour, it makes sense to build a nice big castle on top of it complete with guns to guard said harbour. Montjuic Hill, rising to just over 180 metres above Barcelona harbour, is just such a hill, and features a rather splendid bit of fortification at the top, complete with rather large bits of defunct weaponry. From here you are able to get a commanding view across the city of Barcelona as well as the harbour. The reverse view, in fact, that you can see from the photo taken from Parc Gell above. You can also explore the Castle for free, although it isn't really a castle so much as a large pile of walls designed to keep people safe, coupled with incredible views. As an historical aside, Castell de Montjuic was also the place that the calculations that defined the measurement of the metre took place. In case you weren't already aware, a metre is defined as being one ten millionth of the distance between the north pole and the equator. Which seems a marginally less arbitrary measure than the length of some blokes foot. A great view and a bit of metric history. What a combination! Tibidabo As you wander around the city