The 8th Wonder of the modern world
There isn't much I can add to all that has been said about this magnum opus of Muslim rule in Spain. It's one of those places that you just have to visit at least once in your lifetime. I've been lucky enough to visit it three times and I'm still waiting to go back for a fourth and snap some more photos. I tried going last August, but it's almost impossible to go in the high season if you don't reserve tickets well ahead of time. And anyways, the summertime heat and groups of tourists make me prefer to visit in the spring or fall.