Mount Teide, the third active largest volcano in the world and the tallest mountain in Spain, UNESCO World Heritage Site, Teide, Tenerife, Canary Islands, Spain, Atlantic, Europe

Silverswords, a plant unique to Hawaii which flowers once then dies, growing in vast crater of Haleakala, the world's largest dormant volcano, Maui, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America

The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions

Part of the vast crater of 10023 ft Haleakala, the world's largest dormant volcano, seen from Sliding Sands trail, Maui, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America

The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions

Looking south towards Lake Helen from dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

Sulphur deposits at 'Bumpass Hell', the largest area of mudpots and steam vents at this national park around Lassen Peak volcano, Lassen volcanic national park, California, Usa

Dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activity and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

Lake Helen and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, USA

Manzanita Lake and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

Sulphur deposits at 'Bumpass Hell', the largest area of mudpots and steam vents at this national park around Lassen Peak volcano, Lassen volcanic national park, California, Usa

Lake Helen and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, USA

Sulphur deposits at 'Bumpass Hell', the largest area of mudpots and steam vents at this national park around Lassen Peak volcano, Lassen volcanic national park, California, Usa

Mars, Caldera Nix Olympia

Olympus Mons, Mars

Sahara Desert, Africa, True Colour Satellite Image. Sahara desert, true colour satellite image. The Sahara is the world's largest hot desert, made of sand and volcanic mountains. Composite image using data from LANDSAT 5 & 7 satellites.

Galapagos Volcanoes, Ecuador, True Colour Satellite Image. Galapagos Archipelago, Ecuador, true colour satellite image. Galapagos Archipelago is situated 1000 km West of the Ecuadorian coast. The largest and most volcanically active island in the archipelago is Isabela (6 volcanoes). On the left of image, the island of Fernandina (one volcano). Image taken on 16 March 2001 using LANDSAT data. Print size 30 x 30 cm.

Satellite view of the Island of Hawaii, USA. The island is formed of five volcanoes, Mauna Loa being the largest. This image was compiled from data acquired by Landsat 8 satellite in 2014.

Satellite view of Tenerife, Canary Islands, Spain. It is the largest and most populous island of the seven Canary Islands. Volcano Mount Teide at center is the highest point of Spain, at 3718 m. This image was compiled from data acquired by Landsat 8 satellite in 2014.

Satellite view of Sicily, Italy. Mount Etna, on the East coast of Sicily, is the largest active volcano in Europe. This image was compiled from data acquired by Landsat satellites.

Spectacular view at twilight of the 2022 eruption and lava flow of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Spectacular overview of the 2022 eruption and lava flow of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Spectacular view from above the clouds of the 2022 eruption and lava flow of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Fiery Lava flow of the 2022 eruption of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Fiery Lava flow of the 2022 eruption of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Spectacular scene of the golden twilight above the clouds at Mauna Kea with view of the smoke from 2022 eruption of Mauna Loa Volcano (Moku‘āweoweo, the world's largest active volcano) on the Big Island of Hawaii, Island of Hawaii, Hawaii, United States of America

Ecuador's capital and second largest city a view of Quito with Cotopaxi, at 5900 meters, 19,350ft, the world's highest active volcano, Quito, Ecuador

Ecuador's capital and second largest city a view of Quito with Cotopaxi, at 5900 meters, 19,350ft the world's highest active volcano, Quito, Ecuador

Ecuador's capital and second largest city a view of Quito with Cotopaxi, at 5900 meters, 19,350ft the world's highest active volcano, Quito, Ecuador

Ecuador's capital and second largest city a view of Quito with Cotopaxi, at 5900 meters, 19,350ft the world's highest active volcano, Quito, Ecuador

Ecuador's capital and second largest city a view of Quito with Cotopaxi, at 5900 meters, 19,350ft the world's highest active volcano, Quito, Ecuador