Monty Don continues his journey with a trip to the Mediterranean - cradle of European civilization. In Italy, he visits some of the elaborate high Renaissance gardens which have hugely influenced western garden design. But he also travels to Marrakech to visit the oldest continuously maintained garden in the world and on to Spain to visit the Alhambra, thought by many to be the most perfect garden in the world. Gardens: 47. Italy - Villa D'Este , Tivoli 48. Italy - Villa Adriana, Tivoli 49. Italy - Elio's vineyard, Tivoli 50. Italy - Villa Lante, Bagnaia 51. Morocco - The Aguedal, Marrakech 52. Morocco - The Majorelle , Marrakech 53. Spain - The Alhambra/Generalife, Granada 54. Spain - The Patios of Cordoba, Southern Spain 55. Spain - Casa Caruncho, Madrid