Dancers parade on February 25, 2014 duri...Dancers parade on February 25, 2014 during the Nice Carnival, southeastern France. The theme of this year's carnival, running from February 14 until March 4, 2014, is the "King of Gastronomy".   AFP PHOTO / VALERY HACHEVALERY HACHE/AFP/Getty Images

Valery Hache/AFP

Dancers parade during the Nice Carnival in southeastern France. The theme of this year’s carnival, running until March 4, is the ‘King of Gastronomy’.

Anti-government protesters wave Thai fla...Anti-government protesters wave Thai flags as they arrive for a rally outside the national police headquarters in Bangkok on February 26, 2014. Thailand faced warnings on February 26 of a slide towards civil war with both the government and army expressing renewed fears for the country's stability as bitter political divisions spill into violence.  AFP PHOTO/Manjunath KIRANManjunath Kiran/AFP/Getty Images

Manjunath Kiran/AFP

Anti-government protesters wave Thai flags as they arrive for a rally outside the national police headquarters in Bangkok today.

A Chinese tourist wears a face mask besi...A Chinese tourist wears a face mask beside the Forbidden City as heavy air pollution continues to shroud Beijing on February 26, 2014. Beijing's official reading for PM 2.5, small airborne particles which easily penetrate the lungs and have been linked to hundreds of thousands of premature deaths, stood at 501 micrograms per cubic metre.   AFP PHOTO/Mark RALSTONMARK RALSTON/AFP/Getty Images

Mark Ralston/AFP

A Chinese tourist observes the Forbidden City as heavy air pollution continues to shroud Beijing.

Workers construct a Carnival float in the Grande Rio Samba School warehouse on February 24, 2014 in Rio de Janeiro, Brazil. Carnival officially begins on February 28 but pre-festivities have already begun

Mario Tama/Getty Images

Workers construct a Carnival float in the Grande Rio Samba School warehouse in Rio de Janeiro, Brazil. Carnival officially begins on February 28 but pre-festivities have already begun.

enice Carnival 2014...VENICE, ITALY - FEBRUARY 25:  Three people dressed in Carnival Costumes pose at the Doge Palace on February 25, 2014 in Venice, Italy. The 2014 Carnival of Venice will run from February 15 to March 4 and includes a program of gala dinners, parades, dances, masked balls and music events.  (Photo by Marco Secchi/Getty Images)

Marco Secchi/Getty Images

Three people dressed in Carnival costumes pose at the Doge’s Palace on Tuesday in Venice. The 2014 Carnival of Venice runs until March 4 and will include a program of gala dinners, parades, dances, masked balls and music events.

members of Indiaís Dongria tribe watch animal sacrifice during the two-day long Niyamraja Festival atop the Niyamgiri hills near Lanjigarh in Kalahandi district, Orissa state, India. Every year, members of this indigenous group celebrate this festival sacrificing animals and birds in worship of their deity. (AP Photo/Biswaranjan Rout)

Biswaranjan Rout/AP

Members of India’s Dongria tribe watch an animal sacrifice during the two-day Niyamraja Festival atop the Niyamgiri hills near Lanjigarh in Kalahandi district, Orissa state, India. Every year, members of this indigenous group celebrate this festival sacrificing animals and birds in worship of their deity.

Eve Muirhead, Claire Hamilton, Anna Sloan, Vicki Adams...Britain's skip Eve Muirhead celebrates after beating Switzerland in the women's curling bronze medal game at the 2014 Winter Olympics

Wong Maye-E/AP

Britain’s skip Eve Muirhead celebrates after beating Switzerland in the women’s curling bronze medal game at the 2014 Winter Olympics, in Sochi, Russia

ranian President Hassan Rouhani (L) del...Iranian President Hassan Rouhani (L) delivers a speech during a rally in Tehran's Azadi Square (Freedom Square) to mark the 35th anniversary of the Islamic revolution on February 11, 2014. The 35th anniversary of the revolution that ousted the US-backed shah, comes as Tehran rides the wave of a landmark nuclear deal with major powers.

ATTA KENARE/AFP

Iranian president Hassan Rouhani delivers a speech on Tuesday during a rally in Tehran’s Azadi (Freedom) Square, to mark the 35th anniversary of the Islamic revolution

Bacteria portraits...Undated handout photo issued by The Big Bang UK Young Scientists & Engineers Fair of a portrait of Stephen Fry grown from his own bacteria. PRESS ASSOCIATION Photo. Issue date: Monday February 10, 2014. The 'bacteriographs' are made from a sample of the subjects bacteria - and have been grown by Zachary Copfer, an American microbiologist-cum-photographer. To make the Pop Art style images, Zachary cleverly exposes areas of a petri dish to radiation in order to stimulate the bacteria's growth. This creates a photograph grown entirely from the bacteria itself. Zachary is the only person in the world practicing this art, which he terms 'Bacteriography'. This is the first time his work has been brought to the UK. See PA story ARTS Bacteria. Photo credit should read: The Big Bang UK Young Scientists & Engineers Fair/PA Wire

The Big Bang UK Young Scientists & Engineers Fair/PA Wire

A portrait of Stephen Fry grown from his own bacteria, commissioned by The Big Bang Fair. The ‘bacteriographs’ are made from the subject’s bacteria and have been grown by Zachary Copfer, an American microbiologist-cum-photographer. To make the Pop Art style images he exposes areas of a Petri dish to radiation in order to stimulate the bacteria’s growth 

An employee poses for pictures with an orchid display during a photocall for the 2014 'Orchids Festival' at the Royal Botanic Gardens in Kew, west of London, on February 6, 2014. The Festival opens to the public on February 8, 2014.

Ben Stansall/ AFP

Preparations for the Orchids Festival at the Royal Botanic Gardens in Kew, west London. The festival opens to the public on February 8

Spectators watch as waves break over the harbour wall at Porthcawl Wales, during a high tide today.

Matthew Horwood/Getty Images

Spectators watch as waves break over the harbour wall at Porthcawl, Wales, on Wednesday

Skiing freeriders Nicolas and Loris Falquet collaborated with photographer Jeremy Bernard and Swiss mountain sports manufacturer Mammut to create unique images by colouring the snow at their local ski fields of Les Marecottes, near Martigny, in south-western Switzerland. The Swiss brothers used eco-friendly coloured pigments and a futuristic atomizer to colour the snow over a period of 15 days to create 5 minutes of video and a portfolio of 13 extraordinary photos

Jeremy Bernard/Mammut for Photopress via AP Images

Skiing freeriders Nicolas and Loris Falquet collaborated with photographer Jeremy Bernard and Mammut to create unique images by colouring the snow at the local ski fields of Les Marécottes, near Martigny, in southwestern Switzerland

An Egyptian policeman reacts as he walks through the site of a car bomb explosion that struck the Cairo police headquarters today

Mahmud Khaled/AFP

An Egyptian policeman walks through the site of a car bomb explosion that struck the Cairo police headquarters on Friday. 

An Andy Warhol, Chairman Mao and a Red Gerhard Richter are unpacked in the Sothebys warehouse, West London.

Charlie Bibby/FT

An Andy Warhol, Chairman Mao and a Red Gerhard Richter are unpacked in the Sotheby’s warehouse, West London.

Indian Army Day in New Delhi...epa04022054 Indian army personnel march during a function celebrating the Indian Army Day in New Delhi, India, 15 January 2014. The Indian Army commemorated its foundation day by paying homage to martyred soldiers. The army chief took the salute at a parade and also presented Medals for gallantry and unit citations.

Money Sharma/EPA

Indian army personnel march during Army day in New Delhi, on Wednesday. The Indian army marked its foundation day by paying homage to martyred soldiers.

Flooding in Jakarta

Adi Weda/EPA

People ride on a horse-drawn carriage through floodwaters in Jakarta on Monday. Thousands of residents have been evacuated after floods hit the Indonesian capital following heavy rains. 

An employee of a glass recycling processing plant stands before a mountain of bottles stacked up in Gameren, Netherlands  following the Christmas and New Year celebrations

Robin van Lonkhuijsen/EPA

An employee of a glass recycling processing plant stands before a mountain of bottles stacked up in Gameren, Netherlands today, following the Christmas and new year celebrations

Indonesian Christmas security

Tatan Syuflana/AP

Indonesian police officers in riot gear take a break during a show of force ahead of Christmas celebrations in Jakarta, Indonesia.

One year on, Delhi remembers gang rape victim

Harish Tyagi/EPA

Indian activists draw placards in front of a mural painted by protesters symbolising crimes against women, one year after the Delhi gang rape, at Jantar Mantar in New Delhi, India. Events across the Indian capital will mark one year since the fatal gang rape of a 23-year-old student on a moving bus, which provoked widespread outrage and led to stricter laws against sexual assault.

Winchester choristers ice skating

Chris Ison/PA

The boys of Winchester Cathedral Choir enjoy a misty morning skate on the cathedral’s ice rink today, which will be open until 5 January