Runners take part in The Color Run presented by Dulux, known as the happiest 5km on the planet on September 14, 2013 in Brighton, England. (Photo by Steve Bardens/Getty Images for Dulux)

Pope Benedict XVI delivers his last Angelus Blessing from the window of his private apartment to thousands of pilgrims gathered in Saint Peter's Square on February 24, 2013 in Vatican City, Vatican. (Photo by Franco Origlia/Getty Images)

Soldiers with the United States Army's 3rd Battalion, 41st Infantry Regiment, collapse at the end of the day, during a two-day joint mission with the Afghan National Civil Order Police, near Command Outpost Siah Choy on March 25, 2013 in Kandahar Province, Zhari District, Afghanistan. (Photo by Andrew Burton/Getty Images)

Lightning strikes the Willis Tower (formerly Sears Tower) in downtown on June 12, 2013 in Chicago, Illinois. (Photo by Scott Olson/Getty Images)

A truck is covered in ice as firefighters help to extinguish a massive blaze at a vacant warehouse on January 23, 2013 in Chicago, Illinois. (Photo by Scott Olson/Getty Images)

Trayvon Martin supporters rally in Times Square while blocking traffic after marching from a rally for Martin in Union Square in Manhattan on July 14, 2013 in New York City. George Zimmerman was acquitted of all charges in the shooting death of Martin July 13 and many protesters questioned the verdict. (Photo by Mario Tama/Getty Images)

Flames from the Rim Fire consume trees on August 25, 2013 near Groveland, California. (Photo by Justin Sullivan/Getty Images)

A man hangs onto the railing of North Curl Curl ocean pool after winds and rain battered Sydney last night producing large swell on January 29, 2013 in Sydney, Australia. (Photo by Cameron Spencer/Getty Images)

A coal-burning energy plant is seen in an aerial view in the early morning hours of July 30, 2013 near Bismarck, North Dakota. (Photo by Andrew Burton/Getty Images)

Patrons eat at Fred's Texas Cafe as a television shows U.S. President Barack Obama being officially sworn in for his second term as on January 20, 2013 in Fort Worth. (Photo by Tom Pennington/Getty Images)

People walk around the Buddha Statue holding candles for prayers during Makha Bucha Day at Buddhist Park on February 25, 2013 in Nakhon Pathom, Thailand. (Photo by Athit Perawongmetha/Getty Images)

Marching band members wait to perform during a procession walking to bathe on the banks of Sangam, the confluence of the holy rivers Ganges, Yamuna and the mythical Saraswati, on the auspicious bathing day of Mauni Amavasya during the Maha Kumbh Mela on February 10, 2013 in Allahabad, India. The Maha Kumbh Mela, believed to be the largest religious gathering on earth, is held every 12 years on the banks of Sangam, the confluence of the holy rivers Ganga, Yamuna and the mythical Saraswati. (Photo by Daniel Berehulak/Getty Images)

Female Marine recruits stand in line before getting lunch in the chow hall during boot camp on February 26, 2013 at MCRD Parris Island, South Carolina. (Photo by Scott Olson/Getty Images)

Cherry blossoms bloom on the edge of the Tidal Basin after a colder than normal March and chilly April delayed the beginning of the cherry blossom season in the nation's capital April 8, 2013 in Washington, DC. (Photo by Win McNamee/Getty Images)

Supporters wave flags and cheer prior to the arrival of Imran Khan, chairman of the Pakistan Tehrik e Insaf (PTI) party, during an election campaign rally on May 06, 2013 in Multan, Pakistan. (Photo by Daniel Berehulak/Getty Images)

A man overcome by fumes falls out of a window as a fire burns at the Lahore Development Authority (LDA) Plaza on May 09, 2013 in Lahore, Pakistan. (Photo by Daniel Berehulak/Getty Images)

Central American migrants stand atop a freight train headed north early on August 4, 2013 in Arriaga, Mexico. Thousands of immigrants ride atop the trains, known as “la bestia”, or the beast, during their long and perilous journey through Mexico to the U.S. border. (Photo by John Moore/Getty Images)

Water is seen on part of the glacial ice sheet that covers about 80 percent of the country is seen on July 17, 2013 on the Glacial Ice Sheet, Greenland. As the sea levels around the globe rise, researchers affilitated with the National Science Foundation and other organizations are studying the phenomena of the melting glaciers and its long-term ramifications. (Photo by Joe Raedle/Getty Images)

Confederate Civil War re-enactors launch an evening attack during a three-day Battle of Gettysburg re-enactment on June 29, 2013 in Gettysburg, Pennsylvania. (Photo by John Moore/Getty Images)

Thousands of couples take part in a mass wedding ceremony at Cheongshim Peace World Center on February 17, 2013 in Gapyeong-gun, South Korea. (Photo by Chung Sung-Jun/Getty Images)

Aerial picture taken on June 19, 2013 in Villelongue shows the flooded Gave de Pau river one day after unseasonal storms caused havoc across huge swaths of the country. (Photo by Laurent Dard/AFP Photo)

Former Prime Minister and leader of Forza Italia, Silvio Berlusconi gestures on October 2, 2013 at the Senate in Rome before today's Prime Minister Enrico Letta's confidence vote at the Parliament. (Photo by Filippo Monteforte/AFP Photo)

A rebel fighter and a child cross a damaged bridge in Syria's eastern town of Deir Ezzor, on September 2, 2013. (Photo by Abo Shuja/AFP Photo)

Opposition fighters open fire taking cover from behind a car during fightings in the Salaheddin district of the northern Syrian city of Aleppo on October 9, 2013. (Photo by Karam Al-Masri/AFP Photo)

Super Typhoon Haiyan victims sift through the rubble of their destroyed homes as a military cargo plane flies over head in Tacoblan on November 20, 2013. (Photo by Nicolas Asfouri/AFP Photo)

A Somali woman reacts on March 18, 2013 near the site of a car bomb in central Mogadishu. (Photo by Mohamed Abdiwahab/AFP Photo)

A Lebanese man holding a umbrella walks past abandoned Israeli cannons during a snow storm in the southern village of Khiam, on the Israeli-Lebanese border, on December 13, 2013. (Photo by Mahmoud Zayyat/AFP Photo)

A pedestrian holds onto a post in front of a woman falling down during strong winds in central Brussels October 28, 2013. (Photo by Francois Lenoir/Reuters)

A military police peper sprays a protester during a demonstration in Rio de Janeiro, Brazil, Monday, June 17, 2013. (Photo by Victor R. Caivano/AP Photo)

People watch Italy's Mount Etna, Europe's tallest and most active volcano, spewing lava as it erupts on the southern island of Sicily, November 17, 2013. (Photo by Antonio Parrinello/Reuters)

Medical responders run an injured man past the finish line of the 2013 Boston Marathon following two explosions that killed at least two people and injured more than twenty others. (Photo by Charles Krupa/Associated Press)

In this January 4, 2013, photo provided by the Holmes family, Tammy Holmes, second from left, and her grandchildren, two-year-old Charlotte Walker, left, four-year-old Esther Walker, third from left, nine-year-old Liam Walker, eleven-year-old Matilda, second from right, and six-year-old Caleb Walker, right, take refuge under a jetty as a wildfire rages near-by in the Tasmanian town of Dunalley, east of the state capital of Hobart, Australia. (Foto by Holmes Family/Tim Holmes/AP Photo)

Thania Sayne of Effingham, Ill., cries at the grave of her husband, Army Sgt. Timothy D. Sayne, during the playing of taps at a nearby burial service at Arlington National Cemetery, in Arlington, Va., Wednesday, October 16, 2013, a day before what would have been their third wedding anniversary. Sayne, was 4 months pregnant with their second son, Douglas, when her husband was killed on September 18, 2011, in the Kandahar province of Afghanistan. (Photo by Manuel Balce Ceneta/AP Photo)

Baltimore Orioles' Jonathan Schoop reacts after teammate Adam Jones covered his face with shaving cream after a baseball game against the Toronto Blue Jays, Wednesday, September 25, 2013, in Baltimore. (Photo by Patrick Semansky/AP Photo)

Pope Francis holds up an Olympic T-shirt with his name on it given to him in Rio de Janeiro, Brazil, Thursday, July 25, 2013. (Photo by Luca Zennaro/AP Photo)

Army cadets hold a large photo of Army head coach Rich Ellerson during an NCAA college football game against Navy, Saturday, December 14, 2013, in Philadelphia. (Photo by Matt Slocum/AP Photo)

The coffin containing the body of former British Prime Minister Margaret Thatcher arrives for the ceremonial funeral at St Paul's Cathedral in London, Wednesday April 17, 2013. (Photo by Stefan Wermuth/AP Photo)

White Swiss Shepherd dogs “Kenai”, left, and “Yasu”, right, jump into the water during the dog diving competition at the International pedigree dog and purebred cat exhibition in Erfurt, central Germany, Sunday, June 16, 2013. (Photo by Jens Meyer/AP Photo)

In this photo taken on Tuesday, December 17, 2013, Mathieu Dechavanne, head of the Compagnie du Mont Blanc which runs the new attraction, stands in a glass cage named “Pas dans le Vide” (Step into the Void) at the top of the Aiguille du Midi peak (3842-meters high or 12,604 feet), in the French Alps, during a press visit. (Photo by Alexis Moro/AP Photo)

A waitress carries beer mugs during the opening ceremony in the “Hofbraeuzelt” beer tent of the 180th Bavarian “Oktoberfest” beer festival in Munich, southern Germany, Saturday, Sept. 21, 2013. (Photo by Matthias Schrader/AP Photo)

Dave Jackson closes a mailbox with his foot after delivering the mail to a home surrounded on three sides by a flooded Cheyenne Creek Friday, September 13, 2013 in Colorado Springs, Colo.(Photo by Michael Ciaglo/AP Photo/The Colorado Springs Gazette)

A police vehicle is pushed off of the 6th of October bridge by protesters close to the largest sit-in by supporters of ousted Islamist President Mohammed Morsi in the eastern Nasr City district of Cairo, Egypt, Wednesday, August 14, 2013. (Photo by Aly Hazzaa/AP Photo/El Shorouk Newspaper)

Antonio Lopez Chaj, a 43-year-old house painter, appears with his attorneys at a news conference in Los Angeles Monday, July 1, 2013. Lopez Chaj is so badly brain damaged for a beating in a bar that left him with half his skull permanently bashed in that he cannot speak. His lawyers announced he has been awarded a $58 million by a jury in Torrance Superior Court. (Photo by Nick Ut/AP Photo)

In this photo taken Friday, November 1, 2013 and provided by Breitling, Yves Rossy, known as the Jetman, flies by Mount Fuji in Japan. The Swiss aviator jumped from a helicopter at an altitude of 3,600 meters (11,811 feet) and successfully flew the jet-powered carbon-Kevlar Jetwing around the 3,776-meter (12,388-foot)-tall mountain, Japan's highest peak, which was recognized as a UNESCO World Heritage site in June. (Photo by Katsuhiko Tokunaga/AP Photo/Breitling)

Lebanese men run to remove dead bodies from burned cars, at the scene where two explosions have struck near the Iranian Embassy killing several, in Beirut, Lebanon, Tuesday November 19, 2013. (Photo by Hussein Malla/AP Photo)

Firefighters from Schell Vista of Sonoma County and Santa Clara County Cal Fire prepare to put out hotspots on a fire in the hills of Soda Canyon above Napa, Calif., Friday, November 22, 2013. (Photo by Kent Porter/AP Photo/Santa Rosa Press Democrat)

A three-month-old Sumatran tiger cub named “Bandar” shows his displeasure after being dunked in the tiger exhibit moat for a swim reliability test at the National Zoo in Washington, Wednesday, November 6, 2013. (Photo by Manuel Balce Ceneta/AP Photo)