Gabriel Rivas, 30, lifts weights on a balcony on the 28th floor of the "Tower of David" skyscraper in Caracas, Venezuela on Feb. 9, 2014. The 45-story skyscraper in the center of Venezuela's capital is a slum, probably the highest in the world. Squatters invaded the huge concrete skeleton in 2007, and now about 3,000 people call the tower their home.
This picture was received by NBC News on April 1.
New York Mets fans react during a baseball game against the Washington Nationals on opening day at Citi Field on March 31 in New York.
People walk along a cracked road in Iquique, northern Chile, on April 2 a day after a powerful 8.2-magnitude earthquake hit off Chile's Pacific coast, killing at least six people and generating tsunami waves and dangerous ocean currents as far as Hawaii.
Luci Hamlin and her husband Specialist Timothy Hamlin wait to get back to their home on base at Fort Hood, Texas, on April 2. Several people were killed and at least 14 injured on Wednesday when a gunman opened fire at a U.S. Army base in Fort Hood, Texas, the site of another rampage in 2009.
Divers check the bow of the vehicle-carrier "Baltic Breeze" at Vigo's harbor on April 1. Three fishermen were killed and two were missing after a giant cargo ship crashed into their trawler off northern Spain on Tuesday.
Opposition demonstrators clash with members of Venezuela's Bolivarian police during a protest against President Nicolas Maduro's government in Caracas, Venezuela on March 30.
Medal of Honor recipient Sgt. 1st Class Leroy Petry stands with his prosthetic hand over his heart during the "Pledge of Allegiance" at the Capitol in Olympia, Wash. on April 2. The ceremony honored Petry and other recipients of the Medal of Honor from Washington state. Petry lost his hand in 2008 when an enemy grenade he was throwing away from fellow soldiers detonated while in combat in Afghanistan.
Most Rev. Gerald F. Kicanas, bishop of Tucson, offers communion to people across the U.S. - Mexico border on April 1 in Nogales, Ariz. Kicanas along with several clergymen visited the border town to raise awareness for immigration reform and to remember those who have died trying to cross the border.
A girl covered with blood sits at a clinic after being injured by what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad in Aleppo on April 2.
An Afghan soldier and police officer peek through a window as they queue with others to get their registration card on the last day of voter registration for the upcoming presidential elections outside a school in Kabul, Afghanistan, on April 1. Elections will take place on April 5.
Editor's note: The day after publishing this gallery, Associated Press photographer Anja Niedringhaus was killed in Afghanistan by a gunman dressed as an Afghan police officer. The shooting happened while she was covering the upcoming election. Niedringhaus, a Pulitzer Prize winner, was a frequent and valued contributor to NBCNews.com and particularly The Week in Pictures.
Protesters clash with riot police during a protest against the Eurogroup and Ecofin meetings taking place in Athens, Greece, on April 1.
Residents ride past a burning public security kiosk during a protest against a chemical plant project, on a street in Maoming, Guangdong province, early on April 1. The city in southern China said it will not go ahead with the project if a majority of residents object to it, as authorities seek to head off more unrest.
An carpet seller holds up a framed rug depicting Afghan President Hamid Karzai in his store in Kabul, Afghanistan, on March 30. Afghans go to the polls April 5 to choose a new president.
A girl reads a book on her balcony as smoke rises from chimneys of a steel plant, on a hazy day in Quzhou, Zhejiang province, China, on April 3. China's Premier Li Keqiang said last month the country would "declare war" on pollution as part of efforts to upgrade the economy and shift the focus away from heavy industry.
Army Sergeant Martyn Piggott from Pittstown, N.J., patrols across barren foothills outside of Forward Operating Base (FOB) Shank looking for positions the enemy has used to send rockets onto the FOB near Pul-e Alam, Afghanistan on March 30. The primary mission of the soldiers with the 10th Mountain Division stationed at FOB Shank is to advise and assist Afghan National Security Forces in the region. Security is at a heightened state throughout Afghanistan as the nation prepares for the presidential election.
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