I took this picture a couple of weeks ago on the flanks of the famous volcano of Mount Etna on Sicily. There were many cinder cones–in total, there are over 400 on the mountain’s slopes–in this area, some tinged rust with high iron content and others dark gray with pumice. There was even signs of old lava flows emanating from a couple of them. The scale is made evident when you notice the people in the distance. It’s one of the most impressive mountains of the world.