Overlooking the city of Granada, the Alhambra is one of the best-preserved medieval Islamic palaces in the world and one of Spain's most-visited attractions. It represents the last bastion of the Moorish rule that once claimed nearly the entire Iberian Peninsula. When visiting the Alhambra, it is helpful to see it as many separate parts. The Generalife was the summer palace of Granada’s rulers and is filled with lush walkways, walled gardens and copious fountains. The Nasrid Palaces are the most guarded and revered for their fragile nature.