One of the most popular film sets of Game of Thrones is Basque Country in Spain.
Visiting this rainy, rocky, green and beautiful region, you immediately enter into a mystic atmosphere.
I recommend you to drive along the coast of Basque Country starting from San Sebastian and visit all the small villages.
Leave the rest to the nature to surprise you.
Do you know that we know the age of the Earth thanks to the coasts of Zumaia, in Basque Country?