Casa Milà / La Pedrera
One of Gaudis more famous buildings and also a UNESCO World Heritage Site.
Casa Mila was rather unloved by the people of Barcelona and the weird design was given the nickname "La Pedrera" which means something like "The Quarry" in Catalan. Of course today it's one of the tourist magnets. If you want to visit the building you should come early. A few days after visiting this I saw a long line basically standing around the block.
Taken during a trip to Barcelona in May 2009. Please visit the whole set.