For five years, and while living in Davis, Sam McManis wrote a column about traveling through California for the Sacramento Bee. He went beyond the usual subjects to write about places like Nitt Witt Ridge ( a counterpoint to Hearst Castle), Rancho Obi-Wan, and the Museum of History in Granite, and has collected and updated the best stories in his new book, “Crossing California: A Cultural Topography of a Land of Wonder & Weirdness.” He’s back in the area from his current home in Yakima, Wash., for a book tour, and talks about his stories—and what he’d recommend to travelers who visit Davis—today on Davisville.