Alhambra, Spain, is a palace and fortress complex located in Granada, Andalusia, Spain. It was originally constructed as a small fortress in AD 889 on the remains of Roman fortifications, and then largely ignored until its ruins were renovated and rebuilt in the mid-13th century by the Nasrid emir Mohammed ben Al-Ahmar of the Emirate of Granada, who built its current palace and walls. It was converted into a royal palace in 1333. In 1526 Charles I & V commissioned a new Renaissance palace better befitting the Holy Roman Emperor. To discover the Alhambra, it is recommended joining a walking tour or a guide and skip the line.