Karaftu is the biggest hand-carved cave of the world in four stories. The cave dates back to the third geological period, over the entrance of one of the rooms in the third story, there is an inscription in Greek saying: “Hercules lives here: no Evil may enter.” The archeologists named this room as Hercules Temple. There is a horse rider in the picture that might be Goudarz, a Parthian King. The rooms are mostly connected to each other and the findings of the cave proves that it was inhabited from pre-historic time to 13th and 14th century. Entering the cave is difficult since it is placed on the steep of the mountain and some places inside the cave are reached via boats.