Most of the outdoor landmarks you have enjoyed so far on Sabikah Hill are free. But the undisputed highlight is the Nasrid Palaces. For that, you will need a ticket. Book well in advance. Attendance is strictly regulated. You can try gaining admission the day of your visit, but chances are you will be disappointed. Tours last from three to four hours. They include entry into Alcazaba, Generalife and the palaces. You will not want to miss spectacular arabesque decorations like this in Patio del Cuarto Dorado. The Muslim architecture inside the Nasrid Palaces is considered to be among the finest examples from the late Middle Ages in the world.