A great number of fragments of columns, shaped into posts, and connected with each other by chains, except where spaces are left for persons to pass, surround the cathedral. Some of these columns are antique, and come either from the ruins of Italica, or from the remains of the ancient mosque, whose former site is now occupied by the cathedral, and of which the only remaining vestiges are the Giralda, a few old walls, and one or two arches, one of which serves as the entrance to the courtyard _de los Nanjeros_. The _Lonja_ (Exchange) is a large and perfectly regular edifice, built by the heavy and wearisome Herrera, that architect of _ennui_, to whom we owe the Escurial, which is decidedly the most melancholy building in the world; the Lonja, also, like the cathedral, is surrounded by the same description of posts. It is completely isolated, and presents four similar façades; it stands between the cathedral and the Alcazar. In it are preserved the archives of America, and the correspondence of Christopher Columbus, Pizarro, and Fernand Cortez; but all these treasures are guarded by such savage dragons, that we were obliged to content ourselves with looking at the outside of the pasteboard boxes and portfolios, which are stowed away in mahogany compartments, like the goods in a draper's shop. It would be a most easy thing to place five or six of the most precious autographs in glass-cases, and thus satisfy the very legitimate curiosity of travellers. [Illustration: HALL OF DON PEDRO, THE ALCAZAR, SEVILLE.]