Image: Pétur Reynisson
Over the years, we’ve all seen some pretty amazing photographs of volcanoes – from epic eruption shots with rivers of bubbling lava, to more peaceful images of dormant volcanoes and water-filled craters. In fact, the only perspective we don’t see very often is what a volcano looks like from the inside. Obviously, few people would be crazy enough to explore the interior of an active volcano, and even dormant volcanoes are normally inaccessible as they tend to be plugged up with solidified lava. Thrihnukagigur volcano in Iceland is the only known exception.