Mount Etna Blows Mesmerizing Volcanic Smoke Rings Into the Sky
Volcanos are fascinating geological structures. They essentially serve as vents, allowing the warmer inner materials of the Earth to emerge in flowing lava. Mount Etna, located in Sicily, is even more interesting than your average volcano though. Known as a stratovolcano for its steep cone-shape, Mount Etna's eruptions have been watched and recorded by humans since 1500 BCE.