A girl in isolation for radiation screening looks at her dog through a window in Nihonmatsu, Japan.

A North Korean man waves his hand as a South Korean relative weeps, following a luncheon meeting during inter-Korean temporary family reunions at Mount Kumgang resort October 31, 2010. Four hundred and thirty-six South Koreans were allowed to spend three days in North Korea to meet their 97 North Korean relatives, whom they had been separated from since the 1950-53 war.

The iconic photo of Tank Man, the unknown rebel who stood in front of a column of Chinese tanks in an act of defiance following the Tiananmen Square protests of 1989.

A dog named Leao keeps watch by the the grave of his owner who was killed in a landslide in Rio de Janeiro

Pele and British captain Bobby Moore trade jerseys in 1970 as a sign of mutual respect during a World Cup that had been marred by racism.

Five year-old Tanisha Blevin holds the hand of fellow Hurricane Katrina victim, one hundred five year-old Nita LaGarde as they are evacuated from the convention center in New Orleans.

PoW Horace Greasley defiantly confronts Heinrich Himmler during an inspection of the camp he was confined in. Greasley also famously escaped from the camp and snuck back in more than 200 times to meet in secret with a local German girl he had fallen in love with.

A German World War II prisoner, released by the Soviet Union, is reunited with his daughter. The child had not seen her father since she was one year old.

Christians protect Muslims during the 2011 Cairo uprisings.

Eight-year-old Christian Golczynski accepts the flag for his father, Marine Staff Sgt. Marc Golczynski, during a memorial service.

A mother comforts her son following the 2011 tornado in Concord, Alabama.

Jacqueline Kennedy wears her pink Chanel suit, still stained with the blood of her husband, as Lyndon Johnson takes the oath of office in Air Force One. According to Lady Bird Johnson, who was also present: "Her hair was falling in her face but she was very composed ... I looked at her. Mrs. Kennedy's dress was stained with blood. One leg was almost entirely covered with it and her right glove was caked, it was caked with blood her husband's blood. Somehow that was one of the most poignant sights that immaculate woman, exquisitely dressed, and caked in blood."

Greg Cook hugs his dog Coco after finding her inside his destroyed home in Alabama following the Tornado in March, 2012.

A Sudan People's Liberation Army soldier stands at attention on the eve of South Sudan's independence from Sudan.

Three sisters pose for photographs taken years apart

Navy chaplain Luis Padillo gives last rites to a soldier wounded by sniper fire during a revolt in Venezuela.

Robert Peraza pauses at his son's name on the 911 Memorial during the tenth anniversary ceremonies at the site of the World Trade Center

Terri Gurrola is reunited with her daughter after serving in Iraq for 7 months.

US Troops come ashore during the D-Day Invasion of Normandy on June 6, 1944.

A four month-old baby is found miraculously in the rubble four days following the 2011 Japanese Tsunami.

Retired Police Chief Captain Ray Lewis is arrested at an Occupy Wall Street protest.

A monk prays over the body of an elderly stranger who died suddenly while waiting on a train in China.

A child gives a gift to riot police in Bucharest.

Jane Rose Kasmir plants a flower on the bayonets of guards at the Pentagon during a protest against the Vietnam War on October 21, 1967. The photograph would eventually become the symbol of the flower power movement.

Tommie Smith and John Carlos raise their fists in a gesture of solidarity at the 1968 Olympic games. Both Americans were expelled from the games as a result.

French civilian weeps as Nazi troops occupy Paris.

A firefighter gives water to a koala during the devastating Black Saturday bushfires that burned across Victoria, Australia, in 2009.

Journalists Euna Lee and Laura Ling, who had been arrested in North Korea and sentenced to 12 years hard labor, are reunited with their families in California after a successful diplomatic intervention by the U.S.

Australian Scott Jones kisses his Canadian girlfriend Alex Thomas after she was knocked to the ground by a police officer's riot shield in Vancouver, British Columbia.

Helen Fisher kisses the hearse carrying the body of her 20-year-old cousin, Private Douglas Halliday, as he and six other fallen soldiers are brought through the town of Wootton Bassett in England.