Huntington

Wear your walking shoes. The Italianate mansion and gardens of railroad magnate Henry Huntington are set on 120 acres in exquisite San Marino, just south of Pasadena. Henry and his wife, Arabella (formerly his aunt), were big collectors—of rare books (including the double-elephant folio edition of Audubon’s Birds of America), paintings and plants. Husband and wife are buried on the property in a mausoleum designed by John Russell Pope, who later designed the Jefferson Memorial, in Washington, D.C. The show-stopping grounds include a Japanese and Chinese garden and a collection of 1,400 varieties of camellias.