San Juan de Gaztelugatxe is a small hermitage on top of a rock stranded in the sea that is accessed by a staircase of 241 steps. This would be enough to make her popular. But "Game of Thrones" catapulted her into a world monument. In addition, we will visit Gernika, the historic capital of Vizcaya, with its Casa de Juntas and the famous oak tree, El Árbol de Gernika, which stands at its entrance.