Two workers shovel mud from the river as they look for gold on March 25, 2014 in Lampang, Thailand. Thai villagers from Wang Nuea, North of Thailand, look for gold in the river every year during the drought season. They are able to make an average around USD 15 per day, however two years ago they reached USD 200 in one day due to the river level dropping so much. The workers begin to search for gold at 10 AM and work until sunset, often working second jobs in the day in order to survive. (Photo by Borja Sanchez-Trillo/Getty Images)

A nurse helps an injured bomb victim sitting at the back of a pickup truck at the Asokoro General Hospital in Abuja, April 14, 2014. A morning rush-hour bomb killed at least 35 people at a Nigerian bus station near the capital on Monday, raising concerns about the spread of an Islamist insurgency after the first such attack on Abuja for two years. Suspicion fell on Boko Haram, though there was no immediate claim of responsibility from the Islamist group mainly active in the northeast. Five hours after the blast, officials had given no death toll. Reuters journalists counted at least 35 bodies. (Photo by Afolabi Sotunde/Reuters)

German carmaker Daimler's new Smart Fortwo car is seen on display during its world premiere in Berlin July 16, 2014. Daimler is betting that cooperation with Renault and the launch of models to tap growing demand for city cars may pave the way for its diminutive Smart brand to become profitable. Smart will add a new four-seater model to its lineup this year and upgrade the two-passenger Fortwo vehicle, raising hopes by the German group of boosting the brand's flagging sales. (Photo by Thomas Peter/Reuters)

In this Sunday, April 6, 2014 photo, Valery Palma prepares to blow out the candle on a birthday cake for her one-year-old dachshund Camila, at Camila's birthday party in Mexico City. Palma, who has two dogs, spent $300 on the birthday party for 11 canines and 16 people, complete with cake, presents and snacks, at a dog hotel featuring a gym and massage and aromatherapy services. (Photo by Rebecca Blackwell/AP Photo)

A woman takes a picture of people posing in front of “Zinzow”, a “Transformers-inspired” sculpture constructed from scrap metal in Podgorica, July 22, 2014. Danilo Baletic, 22, makes sculptures of his childhood cartoon heroes, “Transformers”, from scrap metal. In the last two years he has made seven “Transformers” sculptures that are placed on the streets of Montenegro's capital Podgorica as part of an exhibition called “Transformers defending Podgorica”. (Photo by Stevo Vasiljevic/Reuters)

Disguised participants strike poses on a car during the ancient carnival of Ituren, in the northern Spanish Navarra province on January 30, 2017. The yearly three day festivities, revolving mainly around agriculture and principally sheep hearding, run on the last Sunday, Monday and Tuesday of January where Navarra Valley locals from two villages dress up and participate in a variety of activites as they perform a pilgrimage through each village. (Photo by Ander Gillenea/AFP Photo)

An injured Iraqi Emergency Response Division (ERD) soldier hit by a mortar is held by another officer as they wait for medics to arrive at the Islamic State occupied Mosul Airport in west Mosul, part of the offensive to retake the city some two years after it fell to the hardline jihadist group, February 23, 2017. Iraqi forces encountered stiff resistance with improvised explosives, heavy mortar fire and snipers hampering their advance before they successfully took the airport. (Photo by Martyn Aim/Getty Images)

An Egyptian worker prepares to lift parts of a statue at the site of a new archeological discovery at Souq Al-Khamis district in Al-Matareya area, Cairo, Egypt on March 9 2017. According to the Ministry of Antiquities, two 19th dynasty royal statues were found in parts in the vicinity of King Ramses II temple in ancient Heliopolis (Oun) Sun Temples by a German-Egyptian archeological mission. (Photo by Xinhua News Agency/Rex Features/Shutterstock)