Mount Vesuvius seen from the ruins of Pompeii, buried in the ash flow of the eruption of AD 79, Columbus basalt lava marble and brick, Pompeii, UNESCO World Heritage site, Campania, Italy, Europe

Basalt cliffs and rock stack, Halsenifs Hellir Beach, near Vik i Myrdal, South Iceland, Iceland, Polar Regions

Basalt columns next to Fingal's Cave on the Isle of Staffa, with Mull in the background, Inner Hebrides, Scotland, United Kingdom, Europe

View of basalt columns in Fingal's Cave on the isle of Staffa, Inner Hebrides, Scotland, United Kingdom, Europe

The mouth of Fingal's Cave, Staffa Island, with Mull in the distance, Inner Hebrides, Scotland, United Kingdom, Europe

Jungman Daepo columnar jointed lava formation, Seogwipo, Jeju Island, UNESCO World Heritage Site, South Korea, Asia

Basalt columns and a tourist ferry, Staffa Island, Inner Hebrides, Scotland, United Kingdom, Euorpe

Basalt columns, Staffa Island, Inner Hebrides, Scotland, United Kingdom, Europe

Svartifoss waterfall in the Skaftafell National Park, Iceland, Polar Regions

October 16, 2013 - Nighttime eruption of Kliuchevskoi (Klyuchevskoy) Volcano, Kamchatka, Russia. Ash cloud and lava flow are produced by the activity of the snowcovered conical stratovolcano. Column of steam rises where lava flow is melting glacier.

October 15, 2013 - Nighttime eruption of Kliuchevskoi (Klyuchevskoy) Volcano, Kamchatka, Russia. Ash cloud and lava flow are produced by the activity of the snowcovered conical stratovolcano. Column of steam rises where lava flow is melting glacier.

Svartifoss waterfall in the Skaftafell National Park, Iceland, Polar Regions

The Radhus (City Hall), an angular construction of concrete, glass and carved lava, Lake Tjorn, Central area, Reykjavik, Iceland, Polar Regions

The Radhus (City Hall), an angular construction of concrete, glass and carved lava, Lake Tjorn, Central area, Reykjavik, Iceland, Polar Regions

Lava entering ocean, Kalapana, Hawai'i Volcanoes National Park, Big Island, Hawai'i, USA, North America

Lava entering ocean, Kalapana, Hawai'i Volcanoes National Park, Big Island, Hawai'i, USA, North America

Monument for the extinct great auk (Pinguinus impennis), created by Todd McGrain. Coastal landscape at Reykjanesviti and Valahnukur on Reykjanes peninsula. europe, northern europe, iceland, august

Monument for the extinct great auk (Pinguinus impennis), created by Todd McGrain. Coastal landscape at Reykjanesviti and Valahnukur on Reykjanes peninsula. europe, northern europe, iceland, august

volcanic eruption fiery column and smoke over volcano crater night shot long exposure Eyjafjallajokull April 2010 Fimmvorduhals South Iceland Iceland Europe

volcanic eruption fiery column and smoke over volcano crater night shot long exposure Eyjafjallajokull April 2010 Fimmvorduhals South Iceland Iceland Europe