The small but remarkable Karpeles Manuscript Library occupies the grand Greek Revival St. James Methodist Chapel, completed in 1856. Thanks to the Karpeles Library (based in Santa Barbara), the elegant interior displays a mind-blowing array of original documents, letters, and manuscripts, from the concluding page of Darwin’s “Origin of Species” and a page of Karl Marx’s “Das Kapital,” to the founding documents of baseball. Exhibits are usually thematic and change every 4 months.