It took volunteers 25 hours to move 750,000 plastic balls from the National Building Museum's "Beach" installation to Dupont Underground, a creative arts institution in Washington, D.C. Christina Cala/NPR hide caption

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Doomsday For The Dunes Of Plastic Balls: The End Comes For 'The Beach'

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When passengers board his train on the Washington, D.C., subway system, they hear Lamour Rogers' pleasing baritone over the public address system. Christina Cala/NPR hide caption

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Metro Driver's Booming Voice Connects Washington, D.C., Commuters

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Alisha Lalani, 10, of Ft. Lauderdale, Fla., looks at her phone as her mother and brother check in for their flight to Miami at Washington's Reagan National Airport. Their flight was one of thousands delayed as a result of a technical glitch with an FAA automated system. Jacquelyn Martin/AP hide caption

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Mchezaji "Che" Axum stands in a hoop house at the University of the District of Columbia's Muirkirk Research Farm, a resource for urban farmers in the city. Whitney Pipkin for NPR hide caption

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Visitors to the Smithsonian's National Air and Space Museum wait for it to reopen after widespread power outages caused many of the buildings along the National Mall in Washington to shut down temporarily on Tuesday. Andrew Harnik/AP hide caption

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Steve Green in the basement of the Washington Design Center, which was recently demolished as part of the construction for the Museum of the Bible. Green and his family, owners of Hobby Lobby, are building the Museum of the Bible. Andre Chung for The Washington Post/Getty Images hide caption

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D.C. Bible Museum Will Be Immersive Experience, Organizers Say

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Smoke inhalation victims walk past a firefighter towards a medical aid bus Monday after passengers on the Washington, D.C., subway were injured when smoke filled the L'Enfant Plaza station during the afternoon rush hour. Paul J. Richards/AFP/Getty Images hide caption

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Thomas Nellon (left), 17, and his brother Johnson Nellon, 14, of Liberia smile at their mother in the arrivals area at John F. Kennedy International Airport in New York earlier this month. The brothers received a health screening upon arrival. The U.S. says it will step up screening measures for arrivals from Ebola-affected West African countries. Craig Ruttle/AP hide caption

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National Geodetic Survey crew members Roy Anderson, left, and Steve Breidenbach set up survey equipment used to measure the height of the Washington Monument. National Geodetic Survey/NOAA hide caption

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Kathy Gaarde, one of the people killed in Monday's shootings at Washington's Navy Yard, in a family photo. Her husband, Douglass, says the picture depicts Gaarde "with her 94-year-old mother who she cared for until she passed away last year." Douglass Gaarde hide caption

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Voters these days often reward politicians who sit at either end of the ideological spectrum while punishing those seen as compromisers. iStockphoto.com hide caption

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Why Does The Mortgage-Interest Tax Deduction Still Exist?

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