Kenya, Wide shot of a herd of springbok walking from left to right across dry desert. A lone lion struts past in the background in the opposite direction.

Two anonymous men's feet walk on gravel, both are wearing army camouflage trousers and beige boots.

Paris, France: People walking along busy Champs Elysees at lunchtime

Manhattan, New York City, USA: Feet of an unidentifiable businessman carrying a briefcase and umbrella while walking along a sidewalk.

A shot of a man walking along the coast at dusk with the sun setting through the clouds above the sea in the background.

Medium shot of a group of men and women walking through an archway. Istanbul's Blue Mosque is seen in the background.

Street in Paris with back of a woman walking her dog, dog has stopped to squat and urinate on the road. They then continue walking away from the camera and out of sight.

A captain walks along the deck of his ship.

Legs and feet of Primary school children wearing summer school uniform, walking toward camera up slope together holding hands

Washington DC, USA: People walking by waterside with cherry blossom trees in the background.

New York, USA: Point of view shot walking along Wall Street with pedestrians passing camera.

Anonymous silhouetted people walking along a sidewalk in New York City, USA, shadows formed on the ground.

Bodies and arms of young Secondary school children, wearing casual summer clothing who are briefly standing in queue, camera pans to legs of children as they walk in single file across school playground

People walk on street with a fountain in the background. Most people are wearing long overcoats.

London, England: Pedestrians walking along Vauxhall Bridge in central London. The MI6 office can be seen on the south side of the River Thames.

Russia: People walking around a market. Sign reads 'Central Market'.

Medium shot of a group of African elephants walking in a single file past a watering hole.

Back shot of a silverback mountain gorilla walking into dense vegetation in the Virunga National Park, Democratic Republic of Congo.

New York, USA: Point of view shot walking along street towards Times Square. Pedestrians crossing road.

A cricket team walks onto the pitch.

The feet of unidentifiable people walking along a busy street in London, England.

Legs of young Secondary school children wearing casual summer clothing walking in single file across school playground followed by female schoolteacher with small group of children. Wall in background has paintings on it.

A lion walks in long grass looking intensely past the camera.

A large crowd of people competing in a walking race come into shot.

A male eastern chimpanzee walks into a clearing in a forest and sits down, in the Gombe National Park, Tanzania.

Low angle shot of people walking beneath highrise office buildings in Hong Kong.

Line of school children's feet walking along in classroom, seen from the level of the green floor.

Two people walk along a marble floor. Only their legs and feet are seen.

Two cricket batsmen walking onto the pitch together.

Paris, France: Low-level view of man walking alone along deserted cobbled street, some pigeons scatter as he approaches them

People walking along a pavement in Paris. Can see the back of a couple holding hands as they walk away from camera.

Paris, France: Traffic turning into tree-lined Champs Elysees with people walking along and large tricolor french national flags hanging between trees

Paris, France: People walking along pavement of the busy Champs Elysees at lunchtime lined with trees and tricolor french flags

London, England: Traffic crossing Vauxhall Bridge in central London. Lots of pedestrians walk alongside the road.

People competing in a walking race come into shot.

Paris, France: People walking along busy Champs Elysees at lunchtime

Legs of young Secondary school children wearing casual summer clothing walking in single file across school playground. Tile wall in background has paintings on it.

A cricket team walking onto the pitch together.

People walking down a street, towards the camera, one woman is talking on her mobile phone (cell phone) as she walks.

Ljubljana, Slovenia: People walk down a street lined with shops in the centre of Ljubljana.

Tracking shot following the feet of an unidentifiable man wearing shoes and a business suit walking across the stars along Hollywood Walk of Fame on Hollywood Boulevard, Los Angeles, California, USA.

Men walking on a tree-lined park avenue in hazy sunshine.

Low angle shot of people's feet walking across a bridge in Paris. Shows people walking in groups and pairs.

London, England: Millennium Bridge in front of the Tate Gallery of Modern Art. Sunlight bursts from overhead silhouetting the gallery building.

London, England: Millennium bridge seen from river

Pedestrians crossing the Millennium Bridge in front of the Tate Gallery of Modern Art in London, England, UK.

Paris, France: People along pavement past cafe and shops

A rodeo-rider wearing a Stetson hat and leather chaps struts across a rodeo arena in the USA.

Pedestrians crossing the Millennium Bridge in front of the Tate Gallery of Modern Art in London, England, UK.

London, England: A cyclist moves into shot as he travels along Vauxhall Bridge in central London. The MI6 office can be seen on the south side of the River Thames.