Most people already know Kurt Cobain the rock star. But author Karan Mahajan says Kurt Cobain the writer is "funny, self-aware, and snotty with a knack for off-the-cuff profundity." Frank Micelotta/Getty Images hide caption

itoggle caption Frank Micelotta/Getty Images

Look twice: Champion skier and skateboarder Kevin Michael Connolly goes places most people wouldn't. And most people -- unlike Connolly -- have legs. Courtesy of Kevin Michael Connolly hide caption

itoggle caption Courtesy of Kevin Michael Connolly

Quanah Parker was the last chief of the Comanches — and the son of Cynthia Ann Parker, who was captured as a child by the Comanches. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images

Explorer Bart Hogan stands at an entrance to the Cheve cave in Mexico. Author James M. Tabor writes about a 2004 expedition through the Cheve supercave in his new book Blind Descent. Frank Abbato hide caption

itoggle caption Frank Abbato

William-Henry Ireland forged hundreds of documents and passed them off as William Shakespeare originals. After his confession, he went on to publish a series of Gothic novels and some romantic poetry. Courtesy of Doug Stewart hide caption

itoggle caption Courtesy of Doug Stewart