G. K. Chesterton visited the United States twice, in 1921 and 1930, and his impressions of America, gleaned from these visits, formed the basis of two books, What I Saw in America (1922) and Sidelights on New London and Newer York (1932).
source : theimaginativeconservative.org/2014/04/chesterton-saw-in-america.html.