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The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe
Crested Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Pictographs, Palatki Heritage Site, Coconino National Forest, Arizona, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
Steam rising from side of Mount Tongariro, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Opalescent pool in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Lower Falls in the Grand Canyon of Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Giants Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Erupting Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Upper Falls in the Grand Canyon of Yellowstone in the Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Red Crater along the Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Artemesia Geyser Pool, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Upper Falls in the Grand Canyon of Yellowstone in the Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pictographs, Honanki Heritage Site, Coconino National Forest, Arizona, United States of America, North America
Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Burren famous glaciated karst pavement landscape of limestone and dry stone walls, County Clare, West of Ireland
Historic site medieval village ruins and 15th Century Carron Church with graveyard, County Clare, West of Ireland
Ancient prehistoric stone boulder and bare limestone pavement, The Burren, County Clare, West of Ireland
Limestone pavement glaciated karst landscape and native flora in The Burren, County Clare, West of Ireland
Limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland
Poulnabrone Portal Dolmen megalythic burial tomb, 3800BC, in The Burren glaciated landscape, County Clare, Ireland
Limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland
Wild native flower flora and limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland
09/04/2009. Spain, España, Canary Islands, Canarias, Lanzarotie, View from Mirador del Rio to La Graciosa island. Cesar Manrique Site of interest.. Arrecife, Mirador Del Rio, Lanzarote. Canary Islands, Spain, España
Spain, Lanzarote, Canary Islands, Jameos del Agua , volcanic cave, Cesar Manrique Site of interest, bar, restaurant, caffe. Arrecife, Jameos Del Agua, Lanzarote. Canary Islands
09/04/2009. Spain, España, Canary Islands, Canarias, Lanzarotie, View from Mirador del Rio to La Graciosa island. Cesar Manrique Site of interest.. Arrecife, Mirador Del Rio, Lanzarote. Canary Islands, Spain, España
Spain, Lanzarote, Canary Islands, Jameos del Agua , volcanic cave, Cesar Manrique Site of interest, bar, restaurant, caffe. Arrecife, Jameos Del Agua, Lanzarote. Canary Islands
09/04/2009. Spain, España, Canary Islands, Canarias, Lanzarotie, View from Mirador del Rio to La Graciosa island. Cesar Manrique Site of interest.. Arrecife, Mirador Del Rio, Lanzarote. Canary Islands, Spain, España
Santa Ursula El Teide and La Orotava valley view. Santa Cruz, La Orotava(world heritage site), Tenerife Island. Canary Islands
Santa Ursula El Teide and La Orotava valley view. Santa Cruz, La Orotava(world heritage site), Tenerife Island. Canary Islands
El Teide and La Orotava valley view. Santa Cruz, La Orotava (world heritage site), Tenerife Island. Canary Islands
Gran Cenote de Tulum in Yucatan Peninsula, Quintana Roo, Mexico. There are thousands of cenotes dotted all over Mexico���s Yucatan Peninsula, and their existence is as much a defining characteristic of the region as is the distinct geological feature from which they result. Once revered by the ancient Mayans as sacred wells, they are now magnets for tourists, adventurers, and explorers alike.
Tourist on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Egyptian temple of Debod, 2nd century BC, at dusk, Madrid, Spain, Europe
Rock wall, Uluru, Ayers Rock, Uluru-Kata Tjuta National Park, Northern Territory, Australia
Saalfelder Feengrotten or Saalfeld Fairy Grottoes, Saalfeld, Thuringia, Germany, Europe
Holy mountain "Man", UNESCO World Heritage Tsodilo Hills, Botswana, Africa
Tourists at Firehole River, Yellowstone National Park, Wyoming, USA
Caravan, Mid-Atlantic Rift zone, Thingvellir National Park, Iceland, Europe
Glacial sink or dip created during the Ice Age on the eastern edge of the Aletsch Glacier, Canton of Valais, Switzerland, Europe
Sandstone rock formation at Tikobaouine, Tassili n'Ajjer National Park, Unesco World Heritage Site, Wilaya Illizi, Algeria, Sahara, North Africa
Tourists taking photos while on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Sunset Lake, geyser, drainage area with a boardwalk, coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Emerald Pool, geyser, drainage area with a boardwalk, coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Parinacota volcano reflecting in the Chungara lake, Lauca national park, UNESCO Biosphere Reserve, Arica and Parinacota Region, Chile, South America
Parinacota volcano reflecting in the Chungara lake, Lauca national park, UNESCO Biosphere Reserve, Arica and Parinacota Region, Chile, South America
Gravel beach and the famous Koenigsstuhl chalk cliff on the Baltic Sea, Nationalpark Jasmund national park, Ruegen island, Mecklenburg-Western Pomerania, Germany Europe
Piton Mountains, bay, rainforest, clouds, UNESCO World Heritage Site, Soufriere, Saint Lucia, LCA, Windward Islands, Lesser Antilles, Caribbean, Caribbean Sea
Piton Mountains, bay, rainforest, clouds, evening, romantic, UNESCO World Heritage Site, Soufriere, Saint Lucia, LCA, Windward Islands, Lesser Antilles, Caribbean, Caribbean Sea
Erosion of a river bed, volcanic region of Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, near Waiouru, North Island, New Zealand
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
So-called sandfalls, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Dirt path, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Basaltic columns, Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe
Basaltic columns, Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe
Basaltic columns, Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe
Travertine terrace formations, UNESCO World Heritage Site, Pamukkale, Denizli Province, Aegean Region, Turkey, Asia
White limestone terraces with turquoise-coloured water under a clear sky, aerial view, sinter terraces, limestone sinter terraces, travertine terraces, Pamukkale, Denizli, UNESCO World Heritage Site, Anatolia, Turkey
Oxararfoss waterfall on Mid-Atlantic Rift, Thingvellir National Park, Iceland, Europe
Travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Mountain bikers cycling in Love Valley, Guevercinlik Valley, Goereme, Cappadocia, Turkey
Lady in the Wind, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Lower Antelope Slot Canyon, Corkscrew Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Tourists on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Tsingy stone forest, limestone rock formations, Tsingy de Bemaraha, UNESCO World Heritage site, Madagascar, Africa
Chalk stratum in the chalk cliffs in the Jasmund National Park, Jasmund peninsula, Ruegen Island, Mecklenburg-Western Pomerania, Germany, Europe
Mountain bikers in Love Valley, Guevercinlik Valley, Goereme, Cappadocia, Turkey
Travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Rock formation in the dunes of Moul N'Aga, Tadrart, Tassili n'Ajjer National Park, Unesco World Heritage Site, Algeria, Sahara, North Africa
Moraine of the Athabasca Glacier, Columbia Icefield, Icefields Parkway, Jasper National Park, Canadian Rockies, Alberta, Canada
Boardwalk on Mound and Jupiter Spring Terrace, Main Terrace, limestone sinter terraces, geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA
Giant's Causeway, Causeway Coast, County Antrim, Northern Ireland, United Kingdom, Europe
Double arch of Wadi, Oued Bouhadian, Tadrart, Tassili n'Ajjer National Park, Unesco World Heritage Site, Algeria, Sahara, North Africa
Maerjelensee, a glacial lake on the eastern edge of the Aletsch Glacier, Canton of Valais, Switzerland, Europe
Travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Wooden path, travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Red sandstone of the Moenkopi formation, rock formations, colours and textures in the Lower Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Mountain bikers cycling in Goereme, Cappadocia, Turkey
Mountain bikers in Love Valley, Guevercinlik Valley, Goereme, Cappadocia, Turkey
View from the Aletsch Panorama Trail down to the 23, 1 km long Aletsch Glacier, Canton of Valais, Switzerland, Europe
Tourists on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Travertine terraces of Pamukkale, UNESCO World Heritage Site, Denizli, Turkey, Asia
Sink from the previous Maerjelensee, a glacier lake on the eastern edge of the Aletsch Glacier, Canton of Valais, Switzerland, Europe