The Innocents Abroad is a travel book by American author Mark Twain published in 1869 which humorously chronicles what Twain called his "e;Great Pleasure Excursion"e; on board the chartered vessel Quaker City (formerly USS Quaker City) through Europe and the Holy Land with a group of American travelers in 1867. It was the best-selling of Twain's works during his lifetime, as well as one of...