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

toggle caption Brandon Chew/NPR

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

toggle caption Research Casting International

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

toggle caption Doug McMains/Smithsonian National Museum of the American Indian

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

toggle caption Susanna Pershern/Courtesy of U.S. National Parks Service

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

toggle caption Nikki Kahn/The Washington Post

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

toggle caption Roberto Gonzalez/Getty Images

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

toggle caption Frederick Eugene Ives/Smithsonian's National Museum of American History

NPR thanks our sponsors

Become an NPR sponsor