Nate Swain poses for a photo by his artwork. Tovia Smith/NPR hide caption

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Unraveled: The Mystery Of The Secret Street Artist In Boston

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Visitors look at Ai Weiwei's "Trace" installation — part of the @Large: Ai Weiwei on Alcatraz series — last year on Alcatraz Island in the San Francisco Bay. Justin Sullivan/Getty Images hide caption

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A LEGO Brickumentary explores the enduring global appeal of the little plastic toys. Courtesy of RADiUS hide caption

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More Than A Toy: Lego Enthusiasts Have Built A Community

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