The U.S. ambassador to Spain and former Vice President of HBO, James Costos, has confirmed that scenes for Game of Thrones Season 5 will be shot in Spain. This comes fast on the heels of confirmed rumors about scouting in the area.
To be exact, The Alcázar of Seville (pictured above) will serve as the Water Gardens of Dorne, where Prince Oberyn Martell’s older brother, Prince Doran, spends his time. It is also likely that the country will host the filming of scenes in Sunspear, the seat of House Martell.
The Alcázar is a Moorish-built castle whose construction dates back to the 1300s, so it would seem to be a perfect fit for a Dornish landmark.
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SO excited they're filming in Sevila, wish I was still living there! The Alcazares will be perfect, it's what I pictured while reading the book, tbh.