Do not miss the Alhambra, in Granada, simply unbelievable. I recommend watching any documentary on the Alhambra first, so you can understand and appreciate its' grandeur. Perched on a hilltop overlooking Granada, it's breathtaking. We were staying in an apartment in Sevilla (also beautiful, do a small-boat tour on the guadalquivir) and did a leisurely drive past Cordoba, on the way to Granada, stayed one night then on the way back, stopped in Cordoba to see the famous Mosque within a Cathedral, the "Mezquita", another wonder of the world.