We know Olmsted through the physical legacy of his stunning landscapes—among them, New York's Central Park, California's Stanford University campus, and Boston's Back Bay Fens. But Olmsted's contemporaries knew a man of even more extraordinarily diverse talents. Born in 1822, he traveled to China on a merchant ship at the age of twenty-one. He cofounded magazine and was an early voice against slavery. He managed California's largest gold mine and, during the Civil War, served as the executive secretary to the United States Sanitary Commission, the precursor of the Red Cross. Rybczynski's passion for his subject and his understanding of Olmsted's immense complexity and accomplishments make his book a triumphant work. In the story of a great nineteenth-century American becomes an intellectual adventure.