Owing to the increasing popularity of the graphic and pictorial methods of imparting information, the photographic camera was employed to secure photographs of the greatest things of the world as seen to-day, both for instruction and entertainment. We forget knowledge acquired by common conversation, and descriptions of places and things; but when we observe them, and their forms are conveyed to our minds through the medium of our eyes, they are indelibly impressed upon the memory. The object, then, of this Publication is to present photographs of all the great sights of the world, from every corner of the globe, carefully reproducing them by the photo-electro process, and adding a few lines of explanation to every picture, so that any one can comprehend each subject. To make this collection, every country was carefully ransacked, starting in Ireland, with the famous Blarney Castle and Lakes of Killarney in the south, and extending to the Giant's Causeway in the north, said by an old legend to have been built by giants to form a road across the channel to Scotland. Passing through Scotland, we photographed its hills, castles, lochs, bridges and cities. Throughout Wales and England, we represent their busy seaport and manufacturing towns; the home of Shakespeare, the Bard of Avon; Windsor Castle, far-famed for its beauty and battlements; Greenwich Observatory, from which the longitude of the world is computed; Hampton Court, a relic of royalty; and London, the metropolis of the world, with over six million people, its crowded streets, imperial buildings, historic abbeys, famous towers and monuments. The Netherlands and Denmark are represented by the dykes and windmills, Copenhagen, Amsterdam, Rotterdam, Antwerp, Brussels, the battlefield of Waterloo; Russia, the land of the Czar, by Moscow, The Kremlin; St. Petersburg, the Winter Palace. Thence our photographers travelled across the steppes to Lapland, Finland, Poland, and over the tundras to sterile Siberia, inflicting its cruel tortures on unhappy exiled prisoners. Germany, that romantic country of northern Europe, affords Berlin; Potsdam, its Royal Palaces; Dresden and its Picture Galleries; Frankfort-on-the-Main, the former home of Luther, the reformer, and Rothschild, the financial king of the world; the picturesque Rhine, lined with its historic castles. France furnishes for our collection Paris, the proudest city of the whole world, ever gay, its pretty boulevards, monuments, towers, bridges, historic buildings, the Louvre and Luxembourg Galleries, and their treasures of painting and sculptures; Versailles, its royal palaces, the largest in the world; the palace at Fontainbleau, buried in the midst of that imperial forest, the home where Napoleon ruled and abdicated; the cities of the interior and those of the ever-delightful Riveria, from Marseilles to Monte Carlo, the latter both lovely, hideous, serene, sensational, beautiful and damnable.