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large depression in the terrain with snow in the mountains caused by the explosion of a mine in the First World War
View into the lava lake inside the crater of Nyiragongo volcano – this is the largest lava lake on earth. \n\nThe 3470 m high volcano Nyiragongo belongs to the group of Virunga volcanoes in the border triangle of DR Congo, Uganda and Rwanda and is one of the most dangerous volcanoes on earth. The nearby city of Goma (the capital of the Congolese province of North Kivu) is constantly threatened by the nearby volcano.
Barringer Meteor crater near Winslow, Arizona; observation platform visible, showing the immense scale. Weathered rocks, desert plants in the foreground. Clear blue sky in above.
Panoramic image of Lava field Malforado and the crater of vocano Duraznero on Ruta de los Volcanes, Cumbre Vieja, La Palma, Spain. Pico de  Teide volcano on Tenerife visible above the clouds in the background
View from the top of Hverfjall volcanic crater in Lake Myvatn region in Northern Iceland.
Panorama of Nakadeke Crater, Mt.Aso, Kumamoto Perfecture, Japan
Meteor Crater impact in Arizona USA 50000 years ago
Hot river at Geothermalatea in  the Haukadalur valley, east of Reykjavík, Iceland.
Spectacular view from Jododaira, Fukushima Prefecture
Ijen volcano, Indonesia
Transmission electron microscope (TEM) micrograph showing dark melanin granules in a melanocyte (top center) and in several keratinocytes, which, unlike melanocytes, have bundles of keratin filaments
Volcanic geothermal landscape which consists of chalk, sulfur and algae at thermal springs in volcanic surroundings. The picture is taken at the Sipoholon hot springs in the northern part of Sumatra
Image of volcano Caldera Blanca in Lanzarote, Canary Islands, Spain.
Panoramic view from the top of Hverfjall volcanic crater in Lake Myvatn region in Northern Iceland.
Ijen volcano crater lake in Indonesia
Surface photography of nature pattern Crystal shot for background.
Panorama of Meteor crater also known as Barringer crater in Arizona, United States of America
Lava boulders on eroded softer slopes. Big Bend National Park, Texas.
Taal active volcano. Crater lake is spewing fumaroles of sulfur and steam from the boiling water lake. The volcano is classed a danger zone and its access is prohibited.
Halemaumau crater is a pit crater located within the much larger summit caldera of Klauea in Hawaii Volcanoes National Park. Halemaumau is home to Pele, Goddess of Hawaiian Volcanoes, according to the traditions of Hawaiian mythology. According to the Hawaii Volcano Observatory the crater is currently active, with lava in an open vent fluctuating from 70 to 150 meters below the crater floor.
View of Ijen volcano in Indonesia, which has turquoise-coloured acidic crater lake
Bromo volcano crater on the Java island in east Indonesia.
Panoramic The Calderon Hondo volcano on the island of Fuerteventura
Close-up of mud pool at geothermal area of Hverir in Iceland.
Lunar landscape on Mount Etna. Volcanic ashes and black stone created by eruptions and lava. Silvestri Craters
Mammoth Hot Springs in the Yellowstone Ecosystem of western USA in North America. Nearest cities are Gardiner, Cooke City, Bozeman, Billings Montana, Salt Lake City, Utah, Denver, Colorado and Jackson, Wyoming.
a dragon eye created by the nature.
Bromo volcano, Indonesia
Looking down into Arizona's Meteor Crater along the southern rim.
High in the spring mountains of Hachimantai, Iwate Prefecture is the famous formation known as Dragon Eye which attracts many visitors through the spring time as the snow melts.
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