Complex sentence: Rising out on a rocky crag above the confluence of two rivers near the Guadarrama mountains, it is one of the most distinctive castle-palaces in Spain by virtue of its shape--like the bow of a ship.
Split into simpler sentences: Rising out on a rocky crag above the confluence of two rivers near the Guadarrama mountains. It is one of the most distinctive castle-palaces in Spain by virtue of its shape--like the bow of a ship.