A woman visits the building that imitates a greco-roman temple which was built in 1869 on the summit of the Donon mountain as he enjoys a cold and sunny winter day in the Vosges mountains, in Granfontaine, near Strasbourg, France, January 19, 2017. (Photo by Christian Hartmann/Reuters)





People run during sunrise at La Concha beach in San Sebastian, northern Spain, 28 December 2016. Maximum temperatures will rise up to 17 degrees Celsius in the north of Spain. (Photo by Javier Etxezarreta/EPA)





A man walks with his camel across the Liwa desert, some 250 kilometres west of the Gulf emirate of Abu Dhabi, during the Liwa 2017 Moreeb Dune Festival on January 2, 2017. The festival, which attracts participants from around the Gulf region, includes a variety of races (cars, bikes, falcons, camels and horses) or other activities aimed at promoting the country's folklore. (Photo by Karim Sahib/AFP Photo)





People enjoy a sunny day on top of the snow covered Feldberg mountain near Frankfurt, Germany, January 5, 2017. (Photo by Kai Pfaffenbach/Reuters)





A couple pose for a wedding photo at Erhai lake in Dali, southwest China’s Yunnan province on December 28, 2016. (Photo by Jason Lee/Reuters)





Artist Liu Bolin wearing a vest with 24 mobile phones walks in smog as he live broadcasts air pollution in the city on the fourth day after a red alert was issued for heavy air pollution in Beijing, China, December 19, 2016. (Photo by Jason Lee/Reuters)





Stephen Donnellan from Galway (R) proposes to his girlfriend Julee Range, from the U.S., on a windy Silverstrand Beach, in Galway, Ireland December 23, 2016. The couple, who have been together for five years and live and work in China, arrived back in Donnellan's hometown on Friday, where he subsequently proposed. His proposal of marriage was accepted. (Photo by Clodagh Kilcoyne/Reuters)





A man walks his dog on the coast of Mar del Plata, Argentina, December 23, 2016. (Photo by Marcos Brindicci/Reuters)





People take pictures on the mountain Smetovi as smog blankets Zenica, Bosnia and Herzegovina December 25, 2016. (Photo by Dado Ruvic/Reuters)





People skate on the frozen Doubs river at the Swiss - French border in Les Brenets, Switzerland, January 2, 2017. (Photo by Denis Balibouse/Reuters)





A woman walks a dog on a snow-covered path beside the Rideau Canal in Ottawa, Ontario, Canada January 4, 2017. (Photo by Chris Wattie/Reuters)





A farmer carrying a sack walks along the fields at Khokana in Lalitpur, Nepal January 9, 2017. (Photo by Navesh Chitrakar/Reuters)





People walk along a bank of the Yenisei river in Siberian taiga area outside Krasnoyarsk, Russia January 15, 2017. (Photo by Ilya Naymushin/Reuters)





A group of cross-country skiers enjoy a cold and sunny winter's day at the Champ du Feu near Strasbourg, France, January 16, 2017. (Photo by Christian Hartmann/Reuters)





A hiker with snow-shoes stands on a rock on the summit of the Donon mountain as he enjoys a cold and sunny winter day in the Vosges mountains, in Granfontaine, near Strasbourg, France, January 19, 2017. (Photo by Christian Hartmann/Reuters)





A cross-country skier is seen in the snow-covered landscape during sunny winter weather near Unteriberg, Switzerland January 20, 2017. (Photo by Arnd Wiegmann/Reuters)





Rick Sorenson, owner of the Rio Ramaza Marina, wades in the Sacramento River after securing an old paddlewheel boat on his property as the river makes its way up the levee on Garden Highway in Sacramento, Calif., Monday, January 9, 2017. (Photo by Hector Amezcua/The Sacramento Bee via AP Photo)





A woman walks away from a monument commemorating the anti-communist resistance in Bucharest, Romania, Wednesday, December 21, 2016, after a memorial ceremony for the victims of the 1989 uprising. The anti-communist uprising, which left more than one thousand people dead and ended the rule of dictator Nicolae Ceausescu, who was executed, started in the western Romanian town of Timisoara on Dec. 16, 1989 and in Bucharest, Romania's capital on Dec. 21, 1989. (Photo by Vadim Ghirda/AP Photo)





A lone hammock nestle between the bent branches of a tree in the centre of a lake in Florida, USA, 14 August 2016. A photographer is cutting back on luggage by using a unique tent replacement – a homey hammock. After losing patience with lugging heavy tents and ground sheets around America, wildlife and conservation photographer Mac Stone, 32, traded it all in for his trusty one pound hammock. While most people only use a hammock for a lazy nap underneath their favourite garden tree, or to sunbathe on a beach, Stone loves the spontaneity of carrying his own hotel room wherever he goes. (Photo by Mac Stone/Barcroft Images)





An Ultra Orthodox Jewish man looks on a rainbow over the Dead Sea in Israel, 14 December 2016, during a stormy weather which is forecasted across the country. (Photo by Abir Sultan/EPA)





Oskar Hagberg rides his kicksled accompanied by his uncle's dog, Alice, on a frozen White Lake near Erinsville, Ontario, Canada, on Christmas Day, Sunday, December 25, 2016. (Photo by Lars Hagberg/The Canadian Press via AP Photo)





A Kurdish Peshmerga soldier is silhouetted while French President Francois Hollande visits a military outpost on the outskirts of the Islamic State-held city of Mosul, outside the Kurdish city of Irbil, Iraq, Monday, January 2, 2017. Hollande is in Iraq for a one-day visit. (Photo by Christophe Ena/AP Photo)





People hunting small animals cross the terrain as smoke is released from a heating plant in morning temperatures of -19 degrees Celsius (-2.2 degrees Fahrenheit) in Minsk, Belarus, Monday, January 9, 2017. (Photo by Sergei Grits/AP Photo)





A man walks in the Alps region near Elva, in the Maira Valley, northwest Italy, on December 15, 2016. (Photo by Marco Bertorello/AFP Photo)





Emirati men walk with their camels across the Liwa desert, some 250 kilometres west of the Gulf emirate of Abu Dhabi, during the Liwa 2017 Moreeb Dune Festival on January 6, 2017. The festival, which attracts participants from around the Gulf region, includes a variety of races (cars, bikes, falcons, camels and horses) or other activities aimed at promoting the country's folklore. (Photo by Karim Sahib/AFP Photo)