The centuries-old histories of its cities are also a big selling point for many visitors, with more old churches, ruins of monasteries, stunning castles, palaces and museums than you could ever hope to see in a lifetime. The iconic Sagrada Família Cathedral in Barcelona, Plaza Mayor in Madrid and Galicia Contemporary Art Museum in Santiago de la Compostela are among Spain's most famous landmarks. Another sight not to miss is the Real Alcázar Palace in Seville – capital of the beautiful southern region of Andalusia.