The Eiffel Tower in the morning fog as seen from the observation deck at the Palais de Chaillot, Paris, France

Equestrian staircase, or riders staircase, in the Rundetaarn (Round Tower), a 17th-century tower, built as an astronomical observatory in Copenhagen, Denmark

Tall Ship Thalassa passing through the Tower Bridge, London, England

USA, New York, Manhattan, Midtown, Empire State Building from Top of The Rock, Rockefeller Center, Tourist Binoculars

USA, New York, Manhattan, Midtown, Empire State Building from Top of The Rock, Rockefeller Center, Tourist Binoculars

People on the hundreds boats are busy collecting various types of stone from the Jadukata river in Sunamganj, Bangladesh.

UK, England, Northumberland, Dunstanburgh Castle, Lilburn Tower

The interior arches of Hallgrimskirkja church, Reykjavik, Iceland

Hveradalir, or “the valley of hot springsâ€, one of the largest and most captivating geothermal areas in Iceland.

The interior helical staircase of London City Hall, London. England

A spiral staircase inside Arc de Triomphe, Paris, France

The Tulip Stairs - a spiral staircase in the Queen̢۪s House, Greenwich, London, England

Young woman wearing traditional national costume, ao dai, in the Imperial City, Hue, Vietnam

A man on the bicycle loaded with the conical bamboo fish traps, near Hanoi, Vietnam

The Hive at Kew Gardens, from beneath, London, England

A fishing boat and the net shops ( a weather-proof storage for the fishing gear), Hasting Old Town, Sussex, England

A spiral staircase, London, England

Abstract details of the Paternoster Vents, or Angel's Wings, a stainless steel sculpture by Thomas Heatherwick, London, England

Ashness jetty, Derwentwater, Cumbria, England

Ashness jetty, Derwentwater, Cumbria, England

Virunga Mountains, Rwanda, Africa. Mountain Gorilla.

Callanish standing stones, Lewis, Hebrides, Scotland

Happisburgh Lighthouse, the oldest working light in East Anglia, Happisburgh, Norfolk, UK

Old black forest farm with snowy landscape, Muggenbrunn, Todtnau, Black Forest, Baden-Wurttemberg, Germany

“Maman" - bronze, marble and stainless steel spider sculpture by Louise Bourgeois, Bilbao, Biscay, Spain

Amboseli Park,Kenya,Africa A family of elephants in Amboseli Kenya

Tall Ship Gallant at the Parade of Sail of the Royal Greenwich Tall Ships Festival 2014, London, UK

Sand dunes of Erg Chebbi, Sahara, Morocco

Red Square, Moscow, Russia

Local woman crossing U Bein Bridge, a 1.2 km wooden footbridge (longest teak bridge in the world), Amarapura, Mandalay, Burma (Myanmar)

Novice Buddhist monk on the way to lunch, Mandalay, Burma/ Myanmar

Novice Buddhist monk reading a book, Bagan, Mandalay, Burma/ Myanmar

An Intha fisherman on Inle Lake, Burma/ Myanmar

An Intha fisherman on Inle Lake, Burma/ Myanmar

Vintage Leather Suitcase with Panama Hat and old style British Passport

Slavyanogorsk, Ukraine

Autumn forest, Poland

Malbork castle, Malbork, Pomorskie, Poland

Wawel Hill, Krakow, Poland

Fishing Boats, Guinea Bay, Anomabu, Ghana

Monk, Lalibela, Ethiopia

The National Monument of Scotland, Edinburgh, Scotland

Black Rock Cottage, Glen Coe, Highlands, Scotland

A tree above the stream, Glen Coe, Highlands, Scotland,

Two trees, Glen Coe, Highlands, Scotland,

Two trees, Glen Coe, Highlands, Scotland,

View along Moskva River towards the Cathedral of Christ the Saviour, Bolshoy Kamenny Most (bridge) and The Vodovzvodnaya Tower, Moscow, Russia

Cold winter morning in Moscow, Russia

Elephant in the maasai mara, Kenya

USA, Washington State, Olympic National Park. Black and white of alder trees reflecting in water

USA, Utah. Washerwoman Arch, Canyonlands National Park.

UK, England, Northumberland, Dunstanburgh Castle, Lilburn Tower

Kylingavatn Lake in Landmannalaugar, Highlands, Iceland

The arches of the Great Gostiny Dvor (Bolshoy Gostiny Dvor) on Nevsky Prospect â€" the oldest shopping centre in Russia, and one of the first shopping arcades in the world, Saint Petersburg, Russia.

The Eiffel Tower in fog, Paris, France

The spiral Tulip Stairs in the Queen̢۪s House in Greenwich, London, England

A spiral staircase in London, England

A spiral staircase in London, England

A spiral staircase in Copenhagen, Denmark

Lang Co lagoon, Vietnam

Net casting fishermen on the Perfume River, Hue, Vietnam

Net casting fishermen on the Perfume River, Hue, Vietnam

Two young women wearing traditional national costume, ao dai, in the Imperial City, Hue, Vietnam

A man on the bicycle loaded with the conical bamboo fish traps, near Hanoi, Vietnam

Infrared view of abandoned car and buildings, Bodie State Historic Park, California.

A spiral staircase, London, England

A spiral staircase in the Queen's House, Greenwich, London, England

A view towards the Millennium Bridge and St Paul's Cathedral, London, England

St Pauls' Cathedral, London, England

Ashness jetty, Derwentwater, Cumbria, England

Mausoleum and sign at Pere Lachaise Cemetery. Paris, France

Door detail at the Fourviere Basilica in old town Vieux Lyon, France (UNESCO World Heritage Site)

Tanzania, Africa. Male African Lion.

Virunga Mountains, Rwanda, Africa. Mountain Gorilla foot.

Eilean Donan castle, Highlands, Scotland

Rain approaching a tree on the shore of Loch Shieldaig, Wester Ross, Highlands, Scotland

Young farmer with two oxen, Bagan, Mandalay region, Myanmar

Sunrise over Bagan, Mandalay region, Myanmar