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November 28, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible against blue night sky.
November 25, 2012 - Extrusion of lava through lava plug on top of conduit leads to small glowing rockfalls. Batu Tara volcano, Komba Island, Indonesia.
January 24, 2012 - Yellow sulphurous deposits resulting from degassing coating scoria cone formed during eruption on Nyamuragira Volcano, Democratic Republic of Congo.
September 11, 2009 - White Dome Geyser erupting, Lower Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
November 2007 - Bubbles rising in Champagne Pool hot spring, Wai-O-Tapu Geothermal area, Taupo Volcanic Zone, New Zealand.
November 13, 2007 - Moeraki Boulders, spherical septarian concretions created by cementation of Paleocene mudstone of the Moeraki formation, Koekohe Beach, New Zealand.
Underwater photographer at the entrance of a cave framed by pink barrel sponges, North Sulawesi, Indonesia.
Iceberg swimming pool, Antarctica.
Diver enters the cavern system at Chac Mool cenote in the Riviera Maya area of Mexico's Yucatan Peninsula.
A cavern diver enters the Taj Mahal cenote system on Mexico's Yucatan Peninsula.
Arid landscape with cactii and desert rock formations near Humahuaca in Jujuy province in the Andes region of Argentina, South America
Rock formations in the foothills of Andes in Cafayate region, Salta, Argentina, South America
Northern lights over Hvitserkur, a spectacular rock formation in Iceland.
Pregnant female California sea lion (Zalophus californianus), on Los Islotes, Baja California Sur, Mexico, North America
Cauldron Falls waterfall on Walden Beck in the village of West Burton, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Pilgrims during the Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
Pilgrim during the Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
Easter Orthodox Christian priest during religious celebrations in the ancient rock-hewn churches of Lalibela, UNESCO World Heritage Sitre, Ethiopia, Africa
Pilgrim during the Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
Priests singing during Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
Priests singing during Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
Orthodox priest hold cross at the ancient sunken rock-hewn church of St. George in Lalibela, Ethiopia, Africa
Waterfall pouring down a rocky cliff, with blurred motion, resulting from a slow shutter speed; at Welcombe Mouth, Hartland, north Devon, England, United Kingdom, Europe
Easter Orthodox Christian religious celebrations in the ancient rock-hewn churches of Lalibela, Ethiopia, Africa
The 12 Bens, Connemara, County Galway, Connacht, Republic of Ireland, Europe
Ephemeral Spring on Red Wall of Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
View above Red Wall Bridge crossing Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
The 11th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The 20th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
A sandstone hoodoo at Bryce Canyon National Park, Utah, USA. Hoodoos are pinnacles of rock shaped by the weather and erosion.
Woman wearing backpack stands alone on the high rock in the dark during sunset and looking at setting sun in the desert mountains of Negev desert in Israel
Misty landscape of Mount Jianglang, Jiangshan City, Zhejiang Province, China
Gap between two peaks of Mount Jianglang, Jiangshan City, Zhejiang Province, China
Mount Jianglang, Jiangshan City, Zhejiang Province, China
Taking photo of cliffs from Dun Aengus, prehistoric hill fort, Inishmore, largest Aran Island, Galway Bay, County Galway, Connacht, Republic of Ireland
Morning lake reflections, Llyn Crafnant, Snowdonia National Park, Wales, United Kingdom, Europe
Chalk cliffs, Jasmund National Park, Sassnitz, Rügen Island, Mecklenburg-Western Pomerania, Germany
Aerial drone view of iconic and picturesque Andros (Chora) Andros Island, Cyclades, Greek Islands, Greece, Europe
A Hindu Shrine within the Batu Caves, near Kuala Lumpur, Malaysia, Southeast Asia, Asia
Aerial view of Cima della Bondasca located between Ferro Valley and Bondasca Valley, border of Italy and Switzerland, Europe
Sunrise at Gerlach Strait, Antarctica, Polar Regions
Waterfall, Prince Christian Sund, Greenland, Arctic, Polar Regions
View towards the coast and sea from the Vatnajokull Glacier, southern area, Iceland, Polar Regions
A woman looks out across the hills of Catalonia from a rock ledge near the village of Siuarana, near Reus and Barcelona, Catalonia, Spain, Europe
Bird petroglyph, Petrified Forest National Park, Arizona, United States of America, North America
A climber tackles a sheer face using tiny fingerholds in Huntsman's Leap, near Bosherston and St. Govan's Head, Pembrokeshire Coast National Park, South Wales, Wales, United Kingdom, Europe
Rockhopper penguin (Eudyptes chrysocome chrysocome), Falkland Islands, South America
White Cliffs, Parininihi, Taranaki, North Island, New Zealand, Pacific
Arthur's Stone (Maen Ceti, Maen Cetty) a Neolithic chambered dolmen, Gower Peninsula, Swansea, Glamorgan, Wales, United Kingdom, Europe
Mumbles Lighthouse and Bracelet Bay, Gower Peninsula, Swansea, West Glamorgan, Wales, United Kingdom, Europe
Worms Head and Rhossili Bay with Heather-clad cliffs, Gower Peninsula, Swansea, West Glamorgan, Wales, United Kingdom, Europe
Golden Gate Bridge, San Francisco, California, United States of America, North America
Panoramic of Cala Rossa, Favignana island, Aegadian Islands, province of Trapani, Sicily, Italy, Mediterranean, Europe
American pika (Ochotona princeps), Mount Evans, Colorado, United States of America, North America
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
An ephemeral pool of water in the granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
An ephemeral pool of water in the granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
An ephemeral pool of water in the granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
View of Black Canyon on the west side of the Agua Fria National Monument of Arizona with the Bradshaw Mountains in the distance.
View of architecture on the Nile river from small boat in Aswan, Aswan, Nubia, Egypt, North Africa, Africa
Holywell Cave (St. Cuthbert's Cave) on Holywell Beach, Cornwall, England, United Kingdom, Europe
Te Men-an-tol prehistoric site in fog, near Penzance, Cornwall, Great Britain.
Adult San Esteban spiny-tailed iguana (Ctenosaura conspicuosa), endemic to Isla San Esteban, Baja California, Mexico, North America
amazing sunrise in the mountains between Pico Do Arieiro and Pico Ruivo, Madeira, Portugal
Agua d'Alto waterfall, San Vicente, Madeira
Petrified Waterfall at sunset, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at sunset, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at sunset, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, elevated view, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, elevated view, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Hot Spring at Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico
Waterfall at the Palenque Archaeological Site, Palenque, Chiapas State, Mexico
Starry sky over majestic Pico de la Zarza mountain peak covered by night fog, Fuerteventura, Jandia, Canary Islands, Spain, Atlantic, Europe
Yesnaby Castle sea stack and cliffs on the wild west coast of Orkney, Scotland, United Kingdom, Europe
Sunset at Dowdy Lake, Red Feather Lakes District, Roosevelt National Forest, Colorado, United States of America, North America
Petroglyph, Alabama Hills, Inyo National Forest, California, United States of America, North America
Lathe Arch framing Mount Whitney at first light Alabama Hills, Inyo National Forest, California, United States of America, North America
Pictographs, Alabama Hills, Inyo National Forest, California, United States of America, North America
Granite rocks at world famous beach of Anse Source d'Argent, La Digue, Seychelles, Indian Ocean, Africa
Red rock pillars with fresh snow, Red Canyon, Dixie National Forest, Utah, United States of America, North America
Foggy sunrise at Sunrise Point with snow, Bryce Canyon National Park, Utah, United States of America. North America
Balanced Rock with fog, Arches National Park, Utah, United States of America, North America
Sumidero Canyon, Chiapas State, Mexico
View towards El Castillo, Tulum Archeological Site, Quintana Roo State, Mexico
View towards El Castillo and Temple of the God of Wind, Tulum Archeological Site, Quintana Roo State, Mexico
Iguana at the rock with Caribbean Sea in the background, Paradise Beach, Tulum, Quintana Roo State, Mexico