A Yeoman Warder stands amongst the ceramic poppies as Queen Elizabeth II and her husband Prince Philip, Duke of Edinburgh, visit the Tower of London's 'Blood Swept Lands and Seas of Red' poppy installation at the Tower of London on October 16, 2014. The art installation will eventually consist of over 800,000 ceramic poppies, and serves to symbolise British and Colonial military fatalities in WW1. (BEN STANSALL)

An artist dressed as the Hindu goddess rehearses a play ahead of a performance to celebrate the Dusshera festival in New Delhi. (CHANDAN KHANNA)

Fighters from the Azov volunteer battalion ignite flares during a march marking the 72nd anniversary of the Ukrainian Insurgent Army in Kiev, Ukraine on Oct. 14, 2014. (Sergei Chuzavkov)

A monk from the Buddhist organization Bodu Bala Sena uses his phone to take pictures during a speech by Ashin Wirathu at a convention in Colombo, Sri Lanka on September 28, 2014. (DINUKA LIYANAWATTE)

Young Buddhist monks hold candles during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand on October 25, 2014. (DARIO PIGNATELLI)

Masked protesters walk through a cloud of tear gas during a 48-hour strike by the two major Greek workers unions in central Athens November 7, 2012. (YANNIS BEHRAKIS)

Commuters travel during a heavy sandstorm in Yecheng county in northwest China's Xinjiang Uygur Autonomous Region on April 16, 2013. (STR)

A boy is smeared with vermillion powder while celebrating "Sindoor Jatra" vermillion powder festival at Thimi, near Kathmandu April 15, 2013. (NAVESH CHITRAKAR)

A street vendor sets up his stall next to a wall with a graffiti bearing the sign of the Mara 18 street gang in downtown San Salvador on November 17, 2012. (Ulises Rodriguez/ Reuters)

Dust rises as a herd of camels arrive for the annual cattle fair in Pushkar, India on Oct. 28, 2014. (Deepak Sharma)

The peloton races along a country road at sunrise during stage 4 of the Absa Cape Epic mountain bike team stage race in the Overberg region of South Africa on 29 March 2012. (NIC BOTHMA)

Indian taxi drivers carry out maintainance work on taxis at the roadside in Kolkata on September 3, 2014. (DIBYANGSHU SARKAR)

Some of the over 4,000 participants in the Color Run Boise 5k celebrate near the finish line in Boise, Idaho on Aug. 23, 2014. (Kyle Green)

A man walks through an agricultural field in Loikaw, Myanmar on October 10, 2014. (YE AUNG THU)

Hamas supporters attend the 25th anniversary of the ruling party of the Gaza Strip in Gaza City on December 8, 2012. (MOHAMMED SABER)

Doris, a supporter of Sierra Leone opposition presidential candidate Julius Maada Bio, poses for a picture at Bio's final campaign rally in Freetown November 15, 2012. (JOE PENNEY)

People attend the Paris Games week show on October 29, 2014 in Paris. (STEPHANE DE SAKUTIN)

A worker cleans windows of a building in New Delhi, India on Dec. 3, 2012. (Mustafa Quraishi)

School girls stand on the edge of a sea port in Colombo, Sri Lanka on May 20, 2013, after travelling from their town of Kalmunai, over 370 kilometres east of the capital. (LAKRUWAN WANNIARACHCHI)

An Indian village woman poses in front of the wall of her house that locals say was damaged by firing from the Pakistan side of the border at Korotana village near Jammu October 9, 2014. (MUKESH GUPTA)

Riot police officers take position in a cloud of gas during clashes with Paris Saint Germain supporters after the celebration of PSG's French League title in Paris on May 13, 2013. (Thibault Camus)

A Reveller takes part in the battle of 'Enfarinats', a flour fight in celebration of the Els Enfarinats festival on December 28, 2012 in Ibi, Spain. (David Ramos)

A woman walks past trees covered with heavy hoarfrost and snow on the bank of the Yenisei River, with the air temperature at about minus 26 degrees Celsius, outside Russia's Siberian city of Krasnoyarsk on December 24, 2012. (ILYA NAYMUSHIN)

The tops of wind turbines penetrate the dense fog covering the outskirts of Amsterdam, Netherlands on Nov. 5, 2014. (Sergei Grits)