Takakkaw Falls, the second tallest waterfall in Canada, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Takakkaw Falls, the second tallest waterfall in Canada, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Trombone player, second line parade in the French Quarter, New Orleans, Louisiana, United States of America, North America

Falesia Second Tower, Monte Titano, UNESCO World Heritage Site, San Marino, Europe

Falesia Second Tower, Monte Titano, UNESCO World Heritage Site, San Marino, Europe

Portrait of Grand Marshall, French Quarter second line parade, French Quarter, New Orleans, Louisiana, United States of America, North America

Trombone player, second line parade in the French Quarter, New Orleans, Louisiana, United States of America, North America

A view of the island of La Gomera, the second smallest island in the Canary Islands, Spain, Atlantic, Europe

A view of the island of La Gomera, the second smallest island in the Canary Islands, Spain, Atlantic, Europe

The Second Sunday Temple of Surami, Surami, Shida Kartli, Georgia (Sakartvelo), Central Asia, Asia

Memorial to Second World War, near Fort St. Elmo, Valletta, Malta, Europe

Second line parade with woman in mask, French Quarter, New Orleans, Louisiana, United States of America, North America

Person in Louis Armstrong costume, French Quarter second line parade, French Quarter, New Orleans, Louisiana, United States of America, North America

Black bear (Ursus americanus), second year cub, Yellowstone National Park, Wyoming, United States of America, North America

Second line parade with woman in mask, French Quarter, New Orleans, Louisiana, United States of America, North America

Selection shed where prisoners were unloaded and separated into able bodied men, kept for work, and woman and children who were taken to gas chambers, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Polan

Railway line and platform where prisoners were unloaded and separated into able bodied men, kept for work, and woman and children who were taken to gas chambers, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cra

Railway line and platform where prisoners were unloaded and separated into able bodied men, kept for work, and woman and children who were taken to gas chambers, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cra

Cruise passengers on excursion by dinghy, Port Lockroy, once a Second World War British Station, now a post office, Antarctic Peninsula, Antarctica, Polar Regions

The cruise ship World Discoverer at anchor in Port Lockroy, once a Second World War British Station, now a post office, Antarctic Peninsula, Antarctica, Polar Regions

Battery casemate on D-Day coast, dating from Second World War, Longues sur Mer, Calvados, Normandy, France, Europe

Pointe du Hoc (Le Hoc Point), site of D-Day landings in June 1944 during Second World War, Omaha Beach, Normandy, France, Europe

Pointe du Hoc (Le Hoc Point), site of D-Day landings in June 1944 during Second World War, Omaha Beach, Normandy, France, Europe

Detail of the second mummiform coffin made from gold-plated wood inlaid with glass-paste, from the tomb of the pharaoh Tutankhamun, discovered in the Valley of the Kings, Thebes, Egypt, North Africa, Africa

Taxis leaving Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

A Chinese business woman looking at her watch at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

A Chinese business woman using a laptop computer at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing China, Asia

A Chinese business woman making a telephone call at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing China, Asia

Second World War memorial, Bukhara, Uzbekistan, Central Asia, Asia

Second hand clothes market, Old City walls, Bukhara, Uzbekistan, Central Asia, Asia

Palace of Parliament, the world's second largest building after the Pentagon, Bucharest, Romania, Europe

Richard Johnson Riding Rooster Booster In The Tote Gold Trophy Hurdle Race At Newbury Racecourse to Take Second Place

Omaha Beach, site of D-day landings during the Second World War seen from the American cemetery, Colleville-sur-Mer, Calvados, Normandy, France, Europe

Statue of Heracles and Telephos dating from the second century AD from Tivoli, Italian marble, Louvre Museum, Paris, France, Europe

The Three Graces, dating from the second century AD, marble, Louvre Museum, Paris, France, Europe

Palace of the Parliament, second biggest building in the world, marble staircase, Bucharest, Romania, Europe

Palace of the Parliament, second biggest building in the world, reception room, Bucharest, Romania, Europe

Palace of the Parliament, second biggest building in the world, marble staircase, Bucharest, Romania, Europe

Palace of the Parliament, second biggest building in the world, marble staircase, Bucharest, Romania, Europe

Palace of the Parliament, second biggest building in the world, theatre room, Bucharest, Romania, Europe

South Bank Second Hand Book Market, South Bank, Southwark, London, England, United Kingdom, Europe

Second entrance gate to Brihadisvara Temple, dating from early Chola period of King Rajendra I between 985 and 1012 AD, UNESCO World Heritage Site, Thanjavur (Tanjore), Tamil Nadu state, India, Asia

American tank, Utah Beach, site of D-Day landings in the Second World War, Cotentin Peinsula, Manche, Normandy, France, Europe

View down to the sea from the platform at Cabo Girao, the second highest cliff in the world at 589 metres, Madeira, Portugal, Atlantic, Europe

Petronas Towers, the world's second tallest building, Kuala Lumpur, Malaysia, Southeast Asia, Asia

A Chinese business woman using a laptop computer at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing China, Asia

Ambergris Cay, second longest reef in the world, near San Pedro, Belize, Central America

A Chinese business woman using the self service check in machines at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

A Chinese business woman using the self service check in machines at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

The Second (New) Severn Bridge, Avon, England, United Kingdom, Europe

Presbyter, Second School, Ghana, West Africa, Africa

Seventh Station of the Cross, Jesus falls for the second time, St. John the Baptist's Church, Arras, Pas-de-Calais, France, Europe

Hundreds of trolleys at Beijing Capital Airport, part of the new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

Tibetan monk comes out from Punakha Dzong, the second oldest and most majestic dzong in Bhutan, Asia

Second Beach, Olympic National Park, UNESCO World Heritage Site, Washington state, United States of America, North America

Hukanui, the Huka Falls on the Waikato River, 10m, 62,000 gallons per second at peak times, in the North Island of New Zealand, Pacific

Second Beach, Olympic National Park, UNESCO World Heritage Site, Washington state, United States of America, North America

A Chinese business woman making a telephone call at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing China, Asia

A second hand book stall on the South Bank, London, England, United Kingdom, Europe

Ship in harbour and waterfront buildings and cathedral of Iceland's second city, Akureyri, Iceland, Polar Regions

Utah Beach, where American Forces landed on D-Day in June 1944 during the Second World War, Calvados, Normandie (Normandy), France, Europe

Zambezi River and bridge from bend at second and third gorges, Victoria Falls, Zimbabwe, Africa

Museum of the Second World War, Gdansk, Poland, Europe

Second-hand bookshop, Hay-on-Wye, Powys, Wales, United Kingdom, Europe

Hundreds of trolleys at Beijing Capital Airport, part of the new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

Wooden sheds, formerly stables for horses, that each held 500 prisoners, many now demolished, but chimneys still stand in the background, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Ambergris Cay, near San Pedro, the second longest reef in the world, Belize, Central America

American Second World War Monument, Butte de Monsec, near Verdun, Meuse, Alsace-Lorraine, France, Europe

Steel works, second largest in world, beside river, Pohang, Kyongsangbuk county, South Korea, Asia

Wooden sheds, formerly stables for horses, that each held 500 prisoners, many now demolished, but chimneys still stand in the background, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Iwo Jima War Memorial to the U.S. Marine Corps, Second World War, Arlington, Virginia, United States of America (USA), North America

Kragero Kommune houses, built in 1996-97 as second homes by the sea, Portor Brygge, Telemark, Norway, Scandinavia, Europe

Railway line and platform where prisoners were unloaded and separated into able bodied men, kept for work, and woman and children who were taken to gas chambers, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cra

Sunway train station building at Beijing Capital Airport part of new Terminal 3 building opened February 2008, second largest building in the world, Beijing, China, Asia

Exterior of thatched houses in Pablo's second village, of the Matses Indian tribe, in the Galvez River area of the Amazon Basin in Peru, South America

The rail entry where all prisoners came, Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Churchill tank and monument 41 degrees RMC from D-Day in the Second World War, Lion sur Mer, Calvados, Normandy, France, Europe

Utah Beach, where American Forces landed on D-Day in June 1944 during the Second World War, Calvados, Normandie (Normandy), France, Europe

Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

The Huka Falls, known as Hukanui (great body of spray) in Maori, 10m high, 62000 gallons of water per second at peak times, Waikato River, South Auckland, North Island, New Zealand, Pacific

Branch of Commerzbank, the second largest bank in the country, on the Nikolaifleet, one of many waterways in the city, Hamburg, Germany, Europe

Auschwitz second concentration camp at Birkenau, UNESCO World Heritage Site, near Krakow (Cracow), Poland, Europe

Traditional wooden houses, Akureyri, Iceland's second city, Iceland, Polar Regions

Aerial view of surf breaking on the windward side of coral reef off the south coast of Vanua Levu, FijiFiji's second biggest island

Aerial view of penninsula with fringing reef near Savusavu on the south coast of Vanua Levu, FijiFiji's second biggest island

Corner of Virgina Street and Second Street in Reno, the glitzy little Las Vegas-style gambling city in the far west, Reno, Nevada, United States of America (), North America

View from the ramparts of the ancient fortress on Nebet Hill in the old town in Plovdiv, the second largest city in Bulgaria, Europe

View from the ramparts of the ancient fortress on Nebet Hill in the old town in Plovdiv, the second largest city in Bulgaria, Europe

Second-hand vehicles for sale at the Friday souk in Nizwa in Oman.

Remains of a Second World War Canadian Halifax Bomber, which crashed in October 1944 on Great Carrs, Lake District, Cumbria, England, United Kingdom, Europe

Second Severn Crossing Bridge, Wales, United Kingdom, Europe

Lobster moth (stauropus fagi) second instar larva, just emerged from old larval skin, ant mimic, oxfordshire, uk

A Second world War lookout post leaning alarmingly and about to tumble over the edge of the cliff near Aldbrough on Yorkshires East Coast, UK. The coast is composed of soft boulder clays, very vulnerable to coastal erosion. This section of coast has been eroding since Roman times, with many villages having disappeared into the sea, and is the fastest eroding coast in Europe. Climate change is speeding up the erosion, with sea level rise, increased stormy weather and increased heavy rainfall events, all playing their part.

Traditional hay meadows at the head of the Langdale valley, Lake District, UK, are some of the best wild flower hay meadows left in the country. Since the second world war, Britian has lost over 95% of its traditional hay meadows, as farmers have converted to silage.

Second World war defences that for a long time were buried under the storm beach are revealed after the December 2013 storm surge at Cley on the North Norfolk coast, UK. The huge waves completely breached the storm beach, and pushed it inland onto the Cley nature reserve.

Wymeswold Solar Farm the largest solar farm in the UK at 34 MWp, based on an old disused second world war airfield, Leicestershire, UK. It contains 130,000 panels and covers 150 acres.

The Remains of the Godwin battery on the beach at Kilnsea at the head of Spurn point on Yorkshires East Coast, UK. Initially constructed during the First World War, the Godwin Battery was added to during the Second World War. It comprised of gun emplacements, search light, barracks, officers’ mess, and a hospital. This section of coastline is the fastest eroding coastline in Europe. The soft boulder clay cliffs are easily eroded and have been eroding since Roman Times, but recently the climate change impacts of increased stormy weather, increased heavy rainfall events and sea level rise have accelerated the rate of erosion. The average rate of attrition is 1.5metres per year, last year it was 5 metres.

Wymeswold Solar Farm the largest solar farm in the UK at 34 MWp, based on an old disused second world war airfield, Leicestershire, UK. It contains 130,000 panels and covers 150 acres.

Technicians work on Wymeswold Solar Farm the largest solar farm in the UK at 34 MWp, based on an old disused second world war airfield, Leicestershire, UK. It contains 130,000 panels and covers 150 acres.

The 354 megawatts SEGS plant at Kramer Junction is the second largest solar thermal power plant in the world, mojave Desert, California, USA.