Participants throw coloured powders and release balloons as they take part the Color Run in the Andalusian capital of Seville, Spain, Reuters Archive. Photo by Marcelo del Pozo.

The gloved hands of an army nurse are seen during a demonstration of an isolation chamber for the treatment of infectious disease patients, at the Germany army medical centre, Bundeswehr Clinc, in Koblenz, Reuters Archive. Photo by Ralph Orlowski.

A local farms a field atop a hill overlooking the Syrian town of Kobani, where have people have gathered to watch fighting between Kurdish fighters and Islamic State militants, near the Mursitpinar border crossing on the Turkish-Syrian border in the southeastern town of Suruc in Sanliurfa province, Reuters Archive. Photo by Yannis Behrakis.

Girls look inside the enclosure for buffalos awaiting sacrifice on the eve of the sacrificial ceremony for the «Gadhimai Mela» festival in Bariyapur, Nepal, Reuters Archive. Photo by Navesh Chitrakar.

Flamingos are seen in a nature reserve park in Panyu district south of Guangzhou, Guangdong province, China, Reuters Archive. Photo by Alex Lee.

Lava explodes from a volcano next to the village of Portela on Fogo Island, Reuters Archive. Photo by Saulo Montrond.

Fences and fields are covered with frost near the A6 highway, also known as the «Autoroute du Soleil (Highway of the Sun) near Dijon, France, Reuters Archive. Photo by Yves Herman.

Barefoot devotees sit on top of a pedestrian waiting shed as they wait for the Black Nazarene during the annual procession in Manila, Reuters Archive. Photo by Ezra Acaya

A Sadhu or a Hindu holy man walks after taking a holy bath at Sangam, the confluence of the Ganges, Yamuna and Saraswati rivers, on a foggy winter morning, on the occasion of Makar Sankranti festival in the northern Indian city of Allahabad, India, Reuters Archive. Photo by Jitendra Prakash.

Orange roses are pictured protruding through the snow in the city cemetery in Londonderry, Northern Ireland, Reuters Archive. Photo by Cathal McNaughton.

Thousands of starlings fly over marshes as they return to roost at dusk near Glastonbury in Somerset, south west England, Reuters Archive. Photo by Toby Melville.

A protester sleeps under an umbrella as she blocks a street outside the government headquarters in Hong Kong, China, Reuters Archive. Photo by Carlos Barria.

Members of the campaigning community Avaaz placed life-size cardboards, depicting Benito Mussolini, Adolf Hitler, Josef Stalin, Francisco Franko and Philippe Petain in front of the Kaiser Wilhelm monument at the Deutsches Eck («German Corner») to protest against a European far-right leaders meeting, in Koblenz, Germany, Reuters Archive. Photo by Kai Pfaffenbach .

People gather in front of the U.S. Embassy on Pariser Platz beside Brandenburg Gate in solidarity with women’s march in Washington and many other marches in several countries, in Berlin, Germany,, Reuters Archive. Photo by Hannibal Hanschke.

A baby giant panda plays at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, Reuters Archive. Photo by Jason Lee.