Yva Momatiuk & John Eastcott / Waterfall and basalt columns, Svartifoss Waterfall, Skaftafell National Park, Iceland
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Graham Eaton / Coastal hexagonal columns of Basalt lava, Reynisdrangar, Iceland, March 2015.
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Ross Hoddinott / Basalt columns at Vik, the southernmost village in Iceland. February 2014.
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Peter Cairns / Reynisdrangar sea stacks at dusk, Vik, Iceland
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Wild Wonders of Europe / O. Haar / Litlanesfoss waterfall, Hengifossá river, basalt lava solidified in hexagonal columns, Iceland, August 2008.
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Wild Wonders of Europe / O. Haarberg / Litlanesfoss waterfall, Hengifoss river, Basalt lava solidified in hexagonal columns, Iceland, August 2008 - EMBARGOED UNTIL AUGUST 2012
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Merryn Thomas / Kilt Rock and Loch Mealt waterfall under stormy skies in the morning, bassalt columns visible. Trotternish Peninsula, Isle of Skye, Scotland. September 2010.
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Alex Hyde / Fingal's Cave, showing basalt columns, Isle of Staffa, Inner Hebrides, Scotland, UK, June 2010
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Orsolya Haarberg / Svartifoss waterfall with basalt columns. Iceland. June 2008
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Jouan & Rius / Basalt columns on coast of Isle of Mull, Inner Hebrides, Scotland, UK
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Inaki Relanzon / Svartifoss waterfall and basalt rock columns in Skaftafell National Park, Iceland
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Steven David Miller / The Pinnacles, remnant columns in an eroded limestone plateau, Nambung National Park, Western Australia