Jean E. Roche / Flooded petrol station in Arles city flooded by the Rhone in December 2003. Camargue, France.

Jean E. Roche / Flooded cars in scrapyard in Arles city flooded by the Rhone in December 2003. Camargue, France.

Gavin Hellier / Elevated night view of the Petronas Twin Towers, illuminated at night, Kuala Lumpur, Malaysia, 2012. No release available.

Gavin Hellier / Modern City Skyline looking towards the Sukhumvit district, Bangkok, Thailand, 2010. No release available.

Gavin Hellier / Elevated city skyline of Pyongyang, capital city, Democratic Peoples' Republic of Korea (DPRK), North Korea, 2012

Pete Oxford / Vintage car on road in Havana, capital of Cuba, Caribbean 2011

Laurent Geslin / Rabbits (Oryctolagus cuniculus) in a Paris park at dusk. France.

Laurent Geslin / Rabbit (Oryctolagus cuniculus) sitting on grass in a Paris park with buildings behind. France.

Laurent Geslin / Blue-tailed damselfly (Ischnura elegans) on leaf in front of the Eiffel tower, Paris, France.

Oscar Dewhurst / Red deer (Cervus elaphus) stag roaring in the mist, silhouetted, backlit at sunrise. Richmond Park, London, UK. October

Oscar Dewhurst / Red deer (Cervus elaphus) young stags fighting in grassland. Richmond Park, London, UK. September

Ashley Cooper / The Thames barrier designed to protect the capital from storm surge flooding, London, England, UK. May 2007

Ashley Cooper / The Thames barrier on the River Thames in London. It was constructed to protect the capital city from storm surge flooding. England, UK, June 2014

Ashley Cooper / The Thames barrier on the River Thames in London. It was constructed to protect the capital city from storm surge flooding. London, England, UK, June 2014

Ashley Cooper / Solar panels above Vauxhall bus station, which provides a third of the bus stations energy needs. London, UK, October 2010

Ashley Cooper / Solar panels above Vauxhall bus station, which provides a third of the bus stations energy needs. London, UK, October 2010

Ashley Cooper / Solar panels above Vauxhall bus station, which provides a third of the bus stations energy needs. London, UK, October 2010

Ashley Cooper / Solar tiles on St Silas's church in Pentonville, London, UK. This new solar roof, produces aprox. 47% of the buildings energy needs and will reduce C02 emissions by 7,000 kg per year. October 2010

Ashley Cooper / Solar tiles on St Silas's church in Pentonville, London, UK. This new solar roof, produces aprox. 47% of the buildings energy needs and will reduce C02 emissions by 7,000 kg per year. October 2010

Ashley Cooper / The Strata building at the Elephant and Castle in London, the first building in the world where wind turbines have been integrated into the fabric of the building. It has three 15 megawatt turbines t...

Ashley Cooper / The Strata building at the Elephant and Castle in London, the first building in the world where wind turbines have been integrated into the fabric of the building. It has three 15 megawatt turbines t...

Ashley Cooper / The Strata building at the Elephant and Castle in London, the first building in the world where wind turbines have been integrated into the fabric of the building. It has three 15 megawatt turbines...

Ashley Cooper / Laguna Miluni a reservoir fed by glacial melt water from the Andean peak of Huayna Potosi. As climate change causes the glaciers to melt, the water supply for La Paz, Bolivia's capital city is rap...

Ashley Cooper / Caroline Lucas a Green Party MEP at the I Count climate change rally in London, UK, November 2006.

Ashley Cooper / C02 balloons at the 'I Count climate change' rally in London, England, UK, November 2006.

Ashley Cooper / Cyclist on the new CS7 Cycle Superhighway that goes from Southwark bridge to Tooting. London England, UK, October 2010.

Ashley Cooper / Cyclist on the new CS7 Cycle Superhighway that goes from Southwark bridge to Tooting. London England, UK, October 2010.

Ashley Cooper / Cyclist on the new CS7 Cycle Superhighway that goes from Southwark bridge to Tooting. London England, UK, October 2010.

Mike Read / Aerial view of Stanley capital city, Falkland Islands, East Falkland British Overseas Territory, December 2016.

Kim Taylor / Ancient Assyria reconstructed section of the wall that once surrounded the capital, Nineveh, now engulfed by the modern city of Mosul, Iraq. In 2014 Hatra was taken over by Islamic State militants and...

Pal Hermansen / Nuuk, capital of Greenland, July 2016.

Peter Lewis / Aerial view of River Thames and Tower Bridge in London at night. October 2014.

Peter Lewis / Aerial view of River Thames and London, lit at night, England, UK. October 2014.

Merryn Thomas / Quito, formally San Francisco de Quito, is the capital city of Ecuador. November 2013.

Merryn Thomas / Buenos Aires, Argentina. South America, January 2014 .

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, the Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Santiago, the capital and largest city of Chile. December 2013.

Pete Oxford / Scarlet Ibis (Eudocimus ruber) flock flying over capital city Georgetown, Guyana, South America

Sven Zacek / Aerial view of Tallinn, the Capital of Estonia at night, with Charles' Church in the foreground, Estonia, October 2013.

Sven Zacek / Aerial view of bay and port of Tallinn, capital of Estonia, October 2013.

Tom Gilks / Banners for Bristol European Green Capital 2015 in front of Bristol Temple Meads train station, Bristol, England, UK. August 2015.

Tom Gilks / Banners for Bristol European Green Capital 2015 in front of Bristol Temple Meads train station, Bristol, England, UK. August 2015.

Tom Gilks / Banners for Bristol European Green Capital 2015 in front of Bristol Temple Meads train station, Bristol, England, UK. August 2015.

Tom Gilks / Flags for Bristol European Green Captial 2015, Bristol, England, UK. August 2015.

Tom Gilks / Banners for Bristol European Green Capital 2015 in front of Bristol Temple Meads train station, Bristol, England, UK. August 2015.

Ben Gillett / Sign explaining in front of the Bristol Whales, a wicker sculpture of two Blue whales surfacing surrounded by plastic bottles. Art installation by Cod Steaks to mark the Bristol Green Capital 2015. Mi...

Ben Gillett / The Bristol Whales - wicker sculpture of two Blue whales surfacing surrounded by plastic bottles. Art installation by Cod Steaks to mark the Bristol Green Capital 2015. Millennium square, Bristol, Eng...

Ben Gillett / People in front of the The Bristol Whales - wicker sculpture of two Blue whales surfacing surrounded by plastic bottles. Art installation by Cod Steaks to mark the Bristol Green Capital 2015. Millenni...

Ben Gillett / The Bristol Whales - wicker sculpture of two Blue whales surfacing surrounded by plastic bottles. Art installation by Cod Steaks to mark the Bristol Green Capital 2015. Millennium square, Bristol, Eng...

Enrique Lopez-Tapia / Buildings in Antananarivo, capital city of Madagascar, March 2005.

Enrique Lopez-Tapia / Buildings in Antananarivo, capital city of Madagascar, March 2005.

Steve O. Taylor (GHF) / View over Agadez, the ancient Sahara trade capital. Niger, 2005.

Steve O. Taylor (GHF) / Portrait of Peul / Fula herdsman visiting the capital Niamey, Niger, 2004.

Dong Lei / Barkam town, with prayer flags. Capital of Ngawa Tibetan and Qiang autonomous prefecture, Qinghai-Tibet Plateau, Sichuan Province, China, Asia

Gavin Hellier / Low aerial view from Hallgrimskirkja of the colourful houses, commercial buildings and harbour of the capital city Reykjavik, Iceland 2006

Gavin Hellier / Low view from Hallgrimskirkja of the colourful houses, commercial buildings and harbour of the capital city Reykjavik, Iceland 2006

Gavin Hellier / Low view from Hallgrimskirkja of the colourful houses, commercial buildings and harbour of the capital city Reykjavik, Iceland 2006

Gavin Hellier / Front Street, the main street in the capital city of Hamilton, Bermuda 2007

Gavin Hellier / The view over the Bangkok City skyline from Vertigo, a bar and restaurant on top of the Banyan Tree Hotel, Bangkok, Thailand, 2010

Gavin Hellier / Elavated view over the Bangkok City skyline, Bangkok, Thailand, 2010

Gavin Hellier / The view over the Bangkok City skyline from Vertigo, a bar and restaurant on top of the Banyan Tree Hotel, Bangkok, Thailand, 2010

Gavin Hellier / Modern City Skyline looking towards the Sukhumvit district, Bangkok, Thailand, 2010

Gavin Hellier / Elevated city skyline of capital Pyongyang, including the Ryugyong hotel and Taedong river, Democratic Peoples' Republic of Korea (DPRK), North Korea, 2012

Gavin Hellier / Elevated city skyline of capital Pyongyang, including the Ryugyong hotel and Taedong river, Democratic Peoples' Republic of Korea (DPRK), North Korea, 2012

Gavin Hellier / Elevated city skyline of capital Pyongyang and Taedong river, Democratic Peoples' Republic of Korea (DPRK), North Korea, 2012

Gavin Hellier / Elevated city skyline of capital Pyongyang, including the Ryugyong hotel and Taedong river, Democratic Peoples' Republic of Korea (DPRK), North Korea, 2012

Gavin Hellier / People in Kim Il Sung Square in the capital city of Pyongyang, Democratic Peoples' Republic of Korea (DPRK), North Korea 2012

Gavin Hellier / People walking across Kim Il Sung Square in the capital city of Pyongyang, Democratic Peoples' Republic of Korea (DPRK), North Korea, April 2012

Colin Monteath / Coal fired power station provides electricity for capital city, causes heavy air pollution during winter due to inversion layer, Ulan Baatar, Mongolia

Bryan and Cherry Alexander / St Mary's Catholic Church on the shore of Stanley, capital city of the Falkland Islands, 2009.

Pete Oxford / Aerial view of Georgetown, capital of Guyana, a city built on the coast below sea level, Guyana, December 2009

Bryan and Cherry Alexander / Regional capital city Petropavlovsk with Avachinskij Volcano beyond. Kamchatka, Siberia, Russia, 1999.

Bryan and Cherry Alexander / Regional capital city Petropavlovsk with Avachinskij Volcano beyond. Kamchatka, Siberia, Russia, 1999.

Bryan and Cherry Alexander / Regional capital city Petropavlovsk with Avachinskij Volcano beyond. Kamchatka, Siberia, Russia, 1999.

Graham Eaton / Luanda Seafront, Angola, Southern Africa, November 2009.

David Woodfall / Aerial view of developing world capital city, Dhaka, Bangladesh, November 2008

David Woodfall / Aerial view of a developing world capital city, Dhaka, Bangladesh, November 2008

Eric Baccega / Aerial view of Yellowknife, mining city and capital of the diamont, Northwest Territories, Canada

Luiz Claudio Marigo / Aerial view of cattle farm isolated by the flood waters of the Mamore River, North of Trinidad city, capital of the Beni Department, 2008

Luiz Claudio Marigo / Aerial view of an island of vegetation and "Caranday" palm trees (Copernicia alba) in the floodplain of the Beni, during the 2008 great flood of Mamoré River, North of Trinidad city, the capital of t...

Luiz Claudio Marigo / Aerial view of Trinidad city, capital of the Beni Department, during the 2008 flood of Mamoré River, Bolivia.

Luiz Claudio Marigo / Aerial view of dust road near Trinidad city, capital of the Beni Department, during the 2008 flood of Mamoré River, Bolivia.

Luiz Claudio Marigo / Aerial view of houses at the periphery of Trinidad city, capital of the Beni Department, during the 2008 flood of Mamoré River, Bolivia.

Patricio Robles Gil / Lake Anosy surrounded by buildings, Antananarivo, capital of Madagascar

LYNN M. STONE / Ushuaia, the capital of the Argentine province of Tierra del Fuego, and the world's southernmost city, Argentina

Staffan Widstrand / Swayambhunath stupa detail, Kathmandu, Nepal.

Gavin Hellier / Our Saviours Church and Jonathon Petersen Memorial in Nuuk (Godthab) Greenland capital city

Gavin Hellier / Charles Bridge and river at dusk with St Vitus Cathedral, Prague, Czech Republic

Gavin Hellier / The Colosseum floodlit at night, Rome, Italy

Gavin Hellier / Elevated view of River Danube and city of Budapest at night, Hungary

Pete Oxford / Chanchan, largest adobe city, 1000 yr-old capital of Chimu kingdom, Trujillo, Peru

Pete Oxford / Chillies & weigh scale at Thimphu market, capital city Central Bhutan

Gavin Hellier / The Roman Forum and Colosseum (The Foro Romano) Rome, Italy

Gavin Hellier / People in Durbar Square, Kathmandu, Nepal

Gavin Hellier / Merdaka Square with Sultan Abdul Samad Building, Petonas Towers, Kuala Lumpur Malaysia