Peter Cairns / Reynisdrangar sea stacks at dusk, Vik, Iceland

Erlend Haarberg / Londrangar sea stacks, Snaefellsnes peninsula, Iceland, February 2011

Erlend Haarberg / Northern fulmar (Fulmarus glacialis) in flight in snow storm, Iceland, April

Erlend Haarberg / Northern gannet (Morus bassanus) colony on a sea stack and seabird cliff, Langanes peninsula, Iceland, July

Brent Stephenson / Australasian Gannet (Morus serrator) breeding colony above sea stacks. Muriwai, Auckland, New Zealand, November.

Inaki Relanzon / Cliffs and sea-stacks on the coast of "El Hierro" Island. Canary Islands, February 2011.

Matthew Maran / A man looking out to sea by coastal rock stacks. The West Coast Trail, Pacific Rim National Park, Vancouver Island, Canada, September 2010. Model released.

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Guy Edwardes / Reynisdrangur stacks and black sand beach Vik i Myrdal at night, Iceland, June 2009

Wild Wonders of Europe / Muñoz / Traigh Ghearadha beach, north east Lewis, Outer Hebrides, Scotland, UK, June 2009

Jack Dykinga / Silhouette of sea stacks at sunset with patterns in the sand left by the receding tide, Second Beach, Olympic Peninsula, Olympic National Park, Washington, USA

Wild Wonders of Europe / Relanzó / Wild coast with sea stacks on a stormy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008 WWE BOOK. WWE INDOOR EXHIBITION

Wild Wonders of Europe / Relanzón / Coast on a stormy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008

Gerry Ellis / Gas effluence pouring out of smoke stacks at nuclear power plant, upper Ohio River, Ohio

Wild Wonders of Europe / Widstrand / European Beech trees (Fagus silvatica) tree trunks logged inside the forest, North Velebit National Park, Velebit Nature Park, Rewilding Europe area, Velebit mountains, Croatia

Ross Hoddinott / Old Harry Rocks, in early morning light and stormy sky, The Purbecks, Dorset, UK. May 2012.

Ross Hoddinott / Old Harry Rocks, in early morning light and stormy sky, The Purbecks, Dorset, UK. May 2012.

Staffan Widstrand / Mimmi Widstrand next to rock formation on beach, Gotland, Sweden's largest island, August 2010. Model released

Staffan Widstrand / Mimmi Widstrand near rauk / stack on beach at sunset, Faro, Gotland, Sweden's largest island August 2010 Model released

Philippe Clement / The eroded chalk sea stack The Pinnacles near Old Harry Rocks at Handfast Point on the Isle of Purbeck along the Jurassic Coast in Dorset, UK November 2012

Philippe Clement / The eroded chalk sea stack The Pinnacles near Old Harry Rocks at Handfast Point on the Isle of Purbeck along the Jurassic Coast in Dorset, UK November 2012

Philippe Clement / Pulpit Rock, artificial stack of rock left by quarrying activity, on seashore at Portland Bill on the Isle of Portland along the World Heritage Jurassic Coast, Dorset, UK, November 2012

Philippe Clement / The eroded chalk sea stacks Old Harry Rocks at Handfast Point on the Isle of Purbeck along the World Heritage Site Jurassic Coast in Dorset, UK, November 2012

Philippe Clement / The eroded chalk sea stacks Old Harry Rocks at Handfast Point on the Isle of Purbeck along the World Heritage Site Jurassic Coast in Dorset, UK, November 2012

Peter Cairns / Sea stacks at Reynisdrangar at dusk, Iceland.

Peter Cairns / Sea stacks at Reynisdrangar at dusk, Iceland.

Ernie Janes / Circular log stacks, North Norfolk, UK

Ernie Janes / Circular log stacks, North Norfolk, UK

Erlend Haarberg / The Londrangar sea stacks at Snaefellsnes Peninsula, Iceland February 2011

David Noton / The moon over the eroded coastline of the Twelve Apostles at dusk, Port Campbell National Park, Great Ocean Road, Victoria, Australia. February 2006.

David Noton / Eroded coastline near Loch Ard Gorge, Port Campbell National Park, Great Ocean Road, Victoria, Australia. February 2006.

David Noton / The Old Man of Stoer sea stack, Sutherland, Scotland, February 2012.

David Noton / The Old Man of Stoer sea stack, Sutherland, Scotland, February 2012.

Philippe Clement / The sea stack L'Aiguille and the Porte D'Aval, a natural arch in the chalk cliffs at Etretat, Côte d'Albâtre, Upper Normandy, France, March

Daniel Heuclin / Arid plains of the Dali desert with eroding rock stacks and mountain on horizon. Bolivian altiplano, South America.

Wild Wonders of Europe / Möllers / Traditional hay stacks in field with the church of Nova Sedlica behind, Slovakia, September 2011

Wild Wonders of Europe / Möllers / Two traditional hay stacks with the church of Nova Sedlica in the distance, Slovakia, September 2011

Paul Harris / 2020VISION / Saltmarsh landscape at West Canvey Marshes RSPB reserve, with industrial buildings and flare stacks in the backgorund, Essex, England, UK, November.

Erlend Haarberg / Northern gannet (Morus bassanus) breeding colony, Syltefjordstauran, Syltefjord, Varanger peninsula, Norway, May 2005

Erlend Haarberg / Coastal rocks including an arch in winter storm, Arnarstapi, Snaefellsnes peninsula, Iceland, January 2011

Erlend Haarberg / Londrangar sea stacks and the Snaefellsjokull mountain under northern lights, Snfellsnes Peninsula, Iceland, February 2011

Erlend Haarberg / The Londrangar sea stacks, Snaefellsnes peninsula, Iceland, February 2011

Orsolya Haarberg / Gatklettur arch and Arnarstapi sea stacks in winter storm, Snaefellsnes Peninsula, Iceland, February 2011

Erlend Haarberg / Northern gannet (Morus bassanus) colony on a sea stack, Seabird cliff, Langanes peninsula, Iceland, July

Jouan & Rius / European beech trees (Fagus sylvatica) large pile of felled logs, Retz Forest, Aisne, Picardy, France, November

Merryn Thomas / Coastal Path near Bantham Bay, with narrow rock stack, and Burgh Island in the distance. South Devon, UK. January 2009.

Onne van der Wal / Stacks of Navy hats. Valparaiso, Chile 2008.

Charlie Summers / The 'Three Sisters' sandstone rock formations in morning light. Monument Valley, Arizona, September 2011.

Inaki Relanzon / Twelve Apostles rock formations, sun setting over limestone stacks, Great Ocean Road, Port Campbell National Park, Victoria State, Australia, September, 2011.

Brent Stephenson / Australasian Gannet (Morus serrator) breeding colony on offshore stack. Muriwai, Auckland, New Zealand, November.

Philippe Clement / Sea stacks at the Plage des Cinq Pineaux at low tide, Saint-Hilaire-de-Riez, La Vendée, Pays de la Loire, France September 2011

Philippe Clement / Sea stacks at the Plage des Cinq Pineaux at Saint-Hilaire-de-Riez, La Vendée, Pays de la Loire, France September 2011

Ross Hoddinott / The Pinnacles (rock stacks) near Old Harry Rocks. Studland, The Purbecks, Dorset, UK, April 2011.

Brent Stephenson / The bird cliffs of Bear Island (Bjornoya) with mist near the tops. Main breeding species are common and Brunnich's guillemots (Uria aalge & U. lomvia) nesting on ledges and rock stacks. Bear Island (B...

Brent Stephenson / The bird cliffs of Bear Island (Bjornoya) with mist near the tops. Main breeding species are common and Brunnich's guillemots (Uria aalge & U. lomvia) nesting on ledges and rock stacks. Bear Island (B...

Ingo Arndt / Smoke emerging from power plant stacks, Lake Powell area, Utah

Juergen Freund / Stacks of seashells for sale for decorative market, Indonesia, July 2008.

Inaki Relanzon / Stacks of Ibiza branded clothes. Ibiza, Balearic Islands, Spain, June.

Eric Baccega / Tourists on the beach near Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada 2010

Eric Baccega / Flowerpot sea stacks with outgoing tide at Hopewell Rocks. The world's highest tides. Bay of Fundy, New Brunswick, Canada, September

Angelo Gandolfi / View of Bonifacio town, and limestome cliffs. Corsica island, France, February 2010

Angelo Gandolfi / View of the white cliffs of Bonifacio. The large boulder (right) fell from the main block 800 years ago. It's called "grain de sable" (grain of sand). Corsica island, France, February 2010

Floris van Breugel / Dawn view of Sea stacks and caves, at Bandon Beach, along the coast of Oregon, USA. June 2008

Bryan and Cherry Alexander / Stacks of Pine (Pinus) logs cut from forests near Gus-Zheleznyy, to be used for building. Ryazan Province, Russia, 2006.

Inaki Relanzon / Seabird nesting cliffs on Snafellsness Peninsula, Iceland.

Nick Garbutt / Stacks of illegally collected wood lying on the quayside in Maroantsetra. From the region of Masoala National Park, north east Madagascar. November 2009.

Nick Garbutt / Stacks of illegally collected wood lying on the quayside in Maroantsetra. From the region of Masoala National Park, north east Madagascar. November 2009.

Nick Garbutt / Stacks of illegally collected wood lying on the quayside in Maroantsetra. From the region of Masoala National Park, north east Madagascar. November 2009.

Nick Upton / Massed stacks of drying peat turves, mechanically extracted on an industrial scale, Goldenstedt moor, near Vechta, Lower Saxony, Germany.

Nick Upton / Massed stacks of drying peat turves, mechanically extracted on an industrial scale, Goldenstedt moor, near Vechta, Lower Saxony, Germany.

Nick Upton / Raised peat bog in foreground, massed stacks of drying peat turves in background, mechanically extracted from bog on an industrial scale, Goldenstedt moor, near Vechta, Lower Saxony, Germany.

Sue Daly / Coastal landscape, West coast of Sark, Channel Isles, UK, 2009

Inaki Relanzon / The cliffs of Bonifacio, Corsica, France. August 2005

Kirkendall-Spring / Sunrise at Cannon Beach with Haystack Rock at the oceans edge. Oregon, USA, November 2009

Robert Thompson / Errigal mountain with peat stacks in the foreground, Derryveagh Mountains, County Donegal, Republic of Ireland, July 2007

Robert Thompson / Coastal landscape, Poll an Brathair, Tory Island, County Donegal, Republic of Ireland, June 2008

Wild Wonders of Europe / Radisics / African daisy (Arctotis hybrids) plants flowering, Ponta de Sao Lourenco, Madeira, March 2009

Albert Lleal / Thermal power plant with tall smoke stacks, Barcelona, Spain

Wild Wonders of Europe / Muñoz / Large rocks sticking out of sea, Traigh Ghearadha beach, north east Lewis, Outer Hebrides, Scotland, UK, June 2009.

Roger Powell / The Stacks of Duncansby looking north towards Duncansby Head, Caithness, Highland, Scotland, UK

Roger Powell / The Stacks of Duncansby looking north towards Duncansby Head, Caithness, Highland, Scotland, UK

Guy Edwardes / Wavecut under red sandstone cliffs at Ladram Bay, Jurassic Coast World Heritage Site, Devon, England, October 2007

Guy Edwardes / Pulpit Rock at sunset, Portland Bill, Isle of Portland, Jurassic Coast World Heritage Site, Dorset, England, May 2009

Ross Hoddinott / Old Harry Rocks, chalk stacks located east of Studland, at sunrise, Dorset, UK. April 2009.

Wild Wonders of Europe/ Bartocha / Pizzomuno stack and limestone cliffs, Vieste, Gargano National Park, Gargano Peninsula, Apulia, Italy, May 2008

Orsolya Haarberg / The sea stacks of Reynisdrangar at Vik in storm. Iceland. June 2008

Wild Wonders of Europe / O. Haarberg / Sea stacks of Reynisdrangar during a storm, Vik, Iceland, June 2008

Wild Wonders of Europe/ Bartocha / Pizzomuno stack and limestone cliffs, Vieste, Gargano National Park, Gargano Peninsula, Apulia, Italy, May 2008

Merryn Thomas / View from coastal Path near Bantham Bay, with narrow rock stack, and Burgh Island in the distance. South Devon, UK. January 2009.

Philippe Clement / The Aval cliff, its arch and the needle at Etretat, Normandy, France

Juan Carlos Munoz / Coastal landscape near Eshaness, W Shetland Islands, Scotland, UK

Jouan & Rius / The Twelwe Apostles at sunrise, Campbell NP, Victoria, Australia

Konrad Wothe / Two hikers walk on beach with sea stacks, Olympic National Park, Washington