Photographer Annie Leibovitz helped make Jann Wenner's fledging rag Rolling Stone the seminal publication of its era; thanks to her portraits of '60s and '70s celebrities, Rolling Stone became a kind of Life magazine for the sex, drugs and rock & roll generation. Her photo of a naked John Lennon curled up around Yoko Ono remains eternally eerie because it was taken just a few hours before his death. In her new traveling exhibit, "Pilgrimage," Leibovitz turns away from some old habits. She used a digital camera and shot, "in an abandoned way," only objects and landscapes during a sojourn across country. But these images are imbued with so much history that they easily stand in for the people associated with them: a close-up of Emily Dickinson's white dress evokes the poet's sheltered life; a peek at Ansel Adams' Carmel darkroom bathed in the deep red of a safe light doubles down on the history of photography.