It started life as a Muslim fortress way back in 913, but Seville’s Real Alcázar is so much more than defence and neurosis. This is the architectural history of the city in one spot, touching on the slight evolutions that came in every single century since the 10th, and it remains the finest piece of Mudéjar architecture in the entire country. You may recognise it from the fifth season of ‘Game of Thrones’ or even the film version of ‘Lawrence of Arabia’, and you could easily spend a day getting lost in its various courtyards, gardens and exquisitely designed rooms. An absolute stunner, in every sense of the phrase.