Fortified walls and towers of the Aljaferia palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

The 14th century Gothic-Mudejar church of Nuestra Senora de la O, Sanlucar de Barrameda, Andalucia, Spain, Europe

Fortified walls and towers of the Aljaferia Palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

The Alhambra, UNESCO World Heritage Site, Granada, Andalucia, Spain, Europe

Walls and towers at night of the Aljaferia Palace, dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

Fortified walls and towers of the Aljaferia palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

Alcazar de los Reyes Cristianos, UNESCO World Heritage Site, Cordoba, Andalucia, Spain, Europe

Fortified walls and towers of the Aljaferia palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

Fortified walls and towers of the Aljaferia palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

Alcazar de los Reyes Cristianos, UNESCO World Heritage Site, Cordoba, Andalucia, Spain, Europe

People watching the Alhambra at the sunset from San Nicolas viewpoint, Granada, Andalucia, Spain, Europe

Fortified walls and towers of the Aljaferia palace dating from the 11th century, Saragossa (Zaragoza), Aragon, Spain, Europe

The Alhambra, UNESCO World Heritage Site, Granada, Andalucia, Spain, Europe

Low angle view of the exterior of a Mudejar Tower (Moorish architecture) in Teruel, Aragon, Spain, Europe

Torreon de la Zuda (left) and the church San Juan de los Panetes in the evening, Zaragoza, Saragossa, province of Zaragoza, Aragon, Northern Spain, Spain, Europe

Spain, Catalonia, Barcelona, Parc de la Ciutadella, public hire bicycles next to Arc de Triomf.