Reales Alcázares de Sevilla (Alcazar of Seville)
The Alcazar of Seville is a royal palace in Seville, Spain, originally a Moorish fort. The palace is renowned as one of the most beautiful in Spain, being regarded as one of the most outstanding examples of mudéjar architecture found on the Iberian Peninsula. The upper levels of the Alcazar are still used by the royal family as the official Seville residence and are administered by the Patrimonio Nacional. It is the oldest royal palace still in use in Europe, and was registered in 1987 by UNESCO as a World Heritage Site, along with the Seville Cathedral and the General Archive of the Indies. The Alcazar of Seville is the Water Gardens of the Kingdom of Dorne.
Osuna, a town in Seville
Plaza de Toros (bullring). Over a hundred years old, the bull ring walls are made of sandstone. Osuna´s bullring becomes the sands of Meeren. Other locations:
The University. Built in 1548 with four towers and influences from the Italian Renaissance, much of the University has been converted to modern classrooms, but parts of it retain the original design, including the the chapel, the Sala de la Girona, and the courtyard.
La Colegiata. Located by the university, this church was founded in 1535.
The Canteras de Osuna. The old quarries that supplied the stones for the town’s structures were visited as well.
Casa Curro is the first restaurant to offer special menu for fans of Game of Thrones.
El Puente Romano, en Córdoba (The Roman bridge in Cordoba)
The Roman bridge is in the Historic centre of Cordoba, Andalusia, southern Spain, built in the early 1st century BC across the Guadalquivir river. It is included in the small preserved area known as Sotos de la Albolafia. The bridge was built by the Romans in the early 1st century BC, perhaps replacing a previous one in wood. It currently, after the Islamic reconstruction, has 16 arcades, one less than original ones, and a total length of 247 meters. The width is around 9 meters. The Roman bridge will be the Long Bridge of Volantis, in Game of Thrones.
You will see these places watching Games of Thrones, but nothing compares to the reality. Travel to Andalusia and know it. That is my suggestion ;-)