A Coast Guard helicopter flies along the Hudson River, which is full of ice floes, during a cold spell caused by a polar vortex on Jan. 9, 2014. Andrew Burton/Getty Images
A dead lawn is seen next to an artificial lawn on July 15, 2014 in San Francisco, California. Justin Sullivan/Getty Images
A view of a sinkhole, which stretches 20 meters by 30 meters, at the Solikamsk-2 mine in Russia’s Perm region. Tass/ZUMA Wire
Tide spectators react to a high wave hitting the bank of Qiantang River in Hangzhou, Zhejiang province, China on Aug. 13, 2014. EPA/XU KANGPING CHINA OUT
The supermoon as seen from the Canary Islands in Spain on Aug. 10, 2014.
Ukrainian riot police in Independence Square during protests in downtown Kiev, Ukraine on Feb. 19, 2014. EPA/SERGEY DOLZHENKO
Anti-government protesters clash with police in Independence Square despite a truce between the Ukrainian president and opposition leaders in Kiev on Feb. 20, 2014. Jeff J Mitchell/Getty Images
Debris from Malaysia Airlines Flight 370 smolders in a field in Grabovo, Ukraine near the Russian border on July 17, 2014.
Pierre Crom/Getty Images
A Palestinian boy looks out on the debris of destroyed buildings during a ceasefire in Gaza City, Gaza on Aug. 31, 2014.
Ashraf Amra/Anadolu Agency/ Getty Images
After escaping Islamic State militants, Adlan Sharoshebo, who is part of a religious minority group called the Yazidis, now sleeps on a bare mattress in Silopi refugee camp in Turkey.
Emily Feldman, Mashable
An explosion rocks the border city of Kobani, Syria, during a reported attack by ISIS militants on a People’s Protection Unit (YPG) position in the city center.
Gokhan Sahin/Getty Images
Pope Francis prays in front of the Western Wall, Judaism’s holiest site, in Jerusalem’s Old City on May 26, 2014.
AP Photo/Oded Balilty, File
Police wearing riot gear walk toward a man with his hands raised on Aug. 11, 2014, in Ferguson.
AP Photo/Jeff Roberson
Protesters rallying against a grand jury’s decision not to indict the police officer involved in the chokehold death of Eric Garner carry mock coffins, which bear the names of victims of fatal police encounters, as they cross the Brooklyn Bridge on Dec. 4, 2014
Protesters open their umbrellas for 87 seconds on Oct. 28, 2014, marking the 87 rounds of tear gas that Hong Kong police fired at unarmed student protesters in the same location one month before.
People carry portraits of their ancestors as they celebrate Victory Day in St. Petersburg, Russia on May 9, 2014.
AP Photo/Dmitry Lovetsky
Ultra-Orthodox Jews dance as they gather for a mass prayer in protest to the government’s army conscription laws in Jerusalem on March 2, 2014.
Indonesian Muslims perform Eid Al-Adha prayer at Al-Akbar Mosque in Surabaya, Indonesia on Oct. 5, 2014.
Robertus Pudyanto/Getty Images
Members of the Samaritan community walk in procession atop Mount Gerizim, above the West Bank city of Nablus, at sunrise on April 20 2014.
A golfer in Spain hits a tee shot as African migrants sit atop a border fence during an attempt to cross into Spanish territories between Morocco and Spain’s north African enclave of Melilla on Oct. 22, 2014.
Susan Dunklee of the United States competes during the Women’s 4 x 6 km Relay during day 14 of the Sochi 2014 Winter Olympics on Feb. 21, 2014.
Adam Pretty/Getty Images
A veterinary staff member of the Sumatran Orangutan Conservation Programme center conducts medical examinations on April 16, 2014 on a 14-year-old male orangutan found with air gun metal pellets embedded in his body.
SUTANTA ADITYA/AFP/Getty Images
British World War II veteran Frederick Glover poses for a photograph during a D-Day commemoration in Ranville, France on June 5, 2014.
AP Photo/Thomas Bregardis, pool