Marines of the 28th Regiment, 5th Division raise the U.S. flag atop Mount Suribachi on Iwo Jima on Feb. 23, 1945. After more than seven decades, Navy Corpsman John Bradley's name will be replaced in captions with the name of Pvt. 1st Class Harold Schultz. Joe Rosenthal/AP hide caption

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Some of Bill Cosby's accusers were upset that the museum did not initially plan to include a reference to the sexual assault allegations against him. William Thomas Cain/Getty Images hide caption

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The Smithsonian is sharing images of astronaut graffiti aboard the Apollo 11 command module, including this tribute to the spacecraft. Smithsonian Air and Space Museum hide caption

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Harry Rubenstein talks about memorabilia from different presidential campaigns. Brandon Chew/NPR hide caption

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From Axes To Flip-Flops: A Peek At 200 Years Worth Of American Political Swag

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A team of blacksmiths, welders, artists and scientists have been working together in Canada to mount the T. rex bones without damaging them. Metal cradles hold 150 of the major bones precisely in place. Research Casting International hide caption

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'Nation's T. Rex' Strikes A Rapacious Pose

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The Inca were innovators in agriculture as well as engineering. Terracing like this, on a steep hillside in Peru's Colca Canyon, helped them grow food. Doug McMains/Smithsonian National Museum of the American Indian hide caption

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For Inca Road Builders, Extreme Terrain Was No Obstacle

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Underwater archaeology researchers explore the site of the São José slave ship wreck near the Cape of Good Hope in South Africa. Susanna Pershern/Courtesy of U.S. National Parks Service hide caption

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The Smithsonian's Jon Blundell scans the fossilized foot bone — the metatarsal — of the Wankel T. rex to help create a digital 3-D image of the long-dead dinosaur. Nikki Kahn/The Washington Post hide caption

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America's T. Rex Gets A Makeover

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Discovery is sitting atop NASA's 747 Shuttle Carrier Aircraft, which will fly the shuttle from Florida to Virginia. Roberto Gonzalez/Getty Images hide caption

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Stereo photographs, called Kromograms, show the earthquake-damaged San Francisco of 1906. They are thought to be the first color photographs from one of the worst natural disasters in U.S. history. Frederick Eugene Ives/Smithsonian's National Museum of American History hide caption

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