A look at some of the most impressive photos from around the world in 2011.
Speaker of the House John Boehner wipes his eyes as outgoing Speaker of the House Nancy Pelosi prepares to hand over over the Speaker's gavel in the House chamber in Washington, D.C. (Jan. 5, 2011)
Family members grieve during the funeral procession of anti-government protester Abdul Ridha Mohammed in Malkiya, Bahrain. Mohammed had been shot in the head when Bahraini security forces attacked anti-government demonstrators. (Feb. 22, 2011)
Demonstrators protest in a hallway below the assembly chamber where Wisconsin Gov. Scott Walker was delivering his budget address to a joint session of the legislature at the Capitol in Madison. (March 1, 2011)
A tsunami floods the coastal city of Miyako after northeastern Japan was hit by a powerful earthquake. (March 10, 2011)
Sigo Hatareyama works to clean out what is left of his house in Kesennuma, Japan. A 9.0-magnitude earthquake struck offshore on March 11, triggering a tsunami wave, which engulfed large parts of north-eastern Japan. (March 21, 2011)
Former 2012 Republican presidential hopeful Herman Cain gets ready to speak at a Tea Party rally at the Statehouse in Concord, N.H. (April 15, 2011)
In this undated file image from video seized from the walled compound of al-Qaida leader Osama bin Laden in Abbottabad, Pakistan, and released by the U.S. Department of Defense, a man, who the American government identified as Osama bin Laden, watches television.
A Libyan rebel fighter runs up a burning stairwell during an effort to dislodge some ensconced government loyalist troops, who were firing on them from an upstairs room during house-to-house fighting on Tripoli Street in downtown Misrata. (April 20, 2011)
Debris is strewn about a neighborhood in Bridgeton, Mo., following a tornado in the area. (April 23, 2011)
Prince William kisses his wife Kate, Duchess of Cambridge, as flower girl Grace van Cutsem, left, covers her ears on the balcony of Buckingham Palace after the Royal Wedding in London. (April 29, 2011)
In this May 1, 2011 file image released by the White House and digitally altered by the source to diffuse the paper in front of Secretary of State Hillary Rodham Clinton, President Barack Obama and Vice President Joe Biden, along with with members of the national security team, receive an update on the mission against Osama bin Laden in the Situation Room of the White House in Washington.
U.S. Army flight medic SGT Jaime Adame, top, cares for seriously wounded Marine CPL. Andrew Smith following an insurgent attack on board a helicopter from the US Army's Task Force Lift "Dust Off", Charlie Company 1-214 Aviation Regiment north of Sangin, in the volatile Helmand Province of southern Afghanistan. (May 15, 2011)
In this citizen journalism photo taken May 16, 2011, with a cell phone by Stefanie Gordon aboard a passenger flight from New York to Palm Beach, Fla., the space shuttle Endeavor streaks toward orbit shortly after liftoff. Gordon says she had just awakened from a nap on the flight when the pilot announced the shuttle might come into view.
The historic Yazoo & Mississippi Valley Railroad Station is surrounded by floodwater in Vicksburg, Miss. (May 17, 2011)
Christal Comstock sits outside her family home, which was destroyed when a massive tornado passed through the town killing at least 116 people in Joplin, Mo.. (May 24, 2011)
Katlyn Wilkins, above, and Andrea Wilkins Morelli work on securing an American flag in a tree as they deal with the destruction caused by a massive tornado that passed through Joplin, Mo. (May 29, 2011)
U.S. Rep. Anthony Weiner (D-NY) speaks to the media regarding his lewd photo tweet controversy on Capitol Hill in Washington, D.C. (May 31, 2011)
Republican candidates, from left, former House Speaker Newt Gingrich, former Massachusetts Governor Mitt Romney and U.S. Rep. Ron Paul of Texas wave to the crowd prior to a debate at Saint Anselm College in Manchester, N.H. (June 13, 2011)
Southern Sudanese celebrate independence from northern Sudan at midnight in Juba. (July 9, 2011)
A leopard attacks a forest guard at Prakash Nagar village near Salugara, on the outskirts of Siliguri, India. The leopard strayed into the village area and mauled several villagers, including three guards, before being caught by forest officials. (July 19, 2011)
In this July 21, 2011 file photo released by NASA, vapor trails follow the space shuttle Atlantis as it approaches Runway 15 on the Shuttle Landing Facility at NASA's Kennedy Space Center at Cape Canaveral, Fla., for the final time.
Tiril Killi, 16, cries as hundreds of thousands of people gather at a memorial vigil following a pair of extremist attacks in Oslo, Norway. Anders Behring Breivik, 32, was charged in the killing of nearly 100 people. (July 25, 2011)
Minhaj Gedi Farah, a 7-month-old child with a weight of 3.4kg, is held by his mother in a field hospital of the International Rescue Committee in Dadaab, Kenya. (July 26, 2011)
Traders work on the floor of the New York Stock Exchange in New York. (Aug. 4, 2011)
A hooded youth walks past a burning vehicle in London, England, where pockets of rioting and looting plagued the area. (Aug. 8, 2011)
The stage collapses at the Indiana State Fair in Indianapolis, Ind. (Aug. 13, 2011)
High winds from Hurricane Irene knocked down five large trees in front of the East River Cooperative Village apartment buildings along Grand Avenue in Manhattan. (Aug. 28, 2011)
Billy Stinson, left, comforts his daughter, Erin, as they sit on the steps where their cottage once stood before it was destroyed by Hurricane Irene in Nags Head, N.C. (Aug. 28, 2011)
A person searches for anyone who may be occupying a building in Waitsfield, Vt., as raging flood waters from Tropical Storm Irene cross Route 100. (Aug. 28, 2011)
People view the Tribute in Light from the Top of the Rock observation deck in Manhattan on the day before the 10th anniversary of 9/11. (Sept. 10, 2011)
Protesters affiliated with the Occupy Wall Street movement are reflected in a stock ticket screen as they march though Lower Manhattan. (Oct. 5, 2011)
Candles, flowers, and an iPhone with Steve Jobs photo displayed are seen in remembrance of Jobs, founder and former CEO of Apple Inc, outside the Apple Store at West 66th Street in Manhattan. Jobs, 56, passed away Oct. 5, 2011 after a long battle with pancreatic cancer. (Oct. 5, 2011)
In this Oct. 6, 2011 file photo released by the White House, Navy Capt. Mark Kelly hugs his wife Rep. Gabrielle Giffords (D-Ariz.) after he received the Legion of Merit from Vice President Joe Biden during Kelly's retirement ceremony in the Secretary of War Suite in the Eisenhower Executive Office Building on the White House complex in Washington.
Turkish rescuers carry Azra Karaduman, a two-week-old baby girl they saved from under debris of a collapsed building in Ercis, Van, eastern Turkey. (Oct. 25, 2011)
A protester's face is cleaned after he was pepper-sprayed by police at the "Occupy Denver" camp in Denver, Colo. (Oct. 29, 2011)
In this Nov. 5, 2011 file photo provided by the Pennsylvania Office of Attorney General, former Penn State football defensive coordinator Gerald "Jerry" Sandusky, center, is placed in a police car in Bellefonte, Pa.
North Carolina forward John Henson, left, tries to block a shot by Michigan State center Adreian Payne during the first half of the Carrier Classic NCAA college basketball game aboard the USS Carl Vinson in Coronado, Calif. (Nov. 11, 2011)
University of California-Davis Police Lt. John Pike uses pepper spray to move Occupy UC Davis protesters while blocking their exit from the school's quad in Davis, Calif. (Nov. 18, 2011)