So little now remains of the ancient domestic architecture of Rome that one is forced to study this subject from written descriptions collected from the works of various historians, poets, and other writers. But from what we know we may conclude that the villas and country-houses were so constructed as to be full of comfort, and suited to the uses for which they were built, without too much regard to the symmetry of the exteriors. The interior convenience was the chief thing to be considered, and when finished they must have often resembled a collection of buildings all joined together, of various heights and shapes; but within they were adapted to the different seasons, as some rooms were made for being warm, while others were arranged for coolness; the views from the windows were also an important feature, and, in short, the pleasure of the people living in them was made the first point to be gained, rather than the impression upon the eye of those who saw them from without. There was great luxury and elegance in the palaces of the noble classes in ancient Rome. The home of Diocletian at Spalatro was one of the most famous Roman palaces, and its ruins show that it was once magnificent. This palace was divided by four streets which ran through it at right angles with each other and met in its centre. Its entrances were called the Golden, Iron, and Brazen Gates. Its exterior architecture was simple and massive, as it was necessary that it should serve as a fortress in case of an attack. Its principal gallery overlooked the sea; it was five hundred and fifteen feet long and twenty-four feet wide, and was famous for its architectural beauty and for the views which it commanded. [Illustration] CHAPTER II. CHRISTIAN ARCHITECTURE. A.D. 328 TO ABOUT 1400. I have written more in detail concerning Ancient architecture than I shall do of that of later times, because it is best to be thorough in studying the beginnings of things; then we can make an application of our knowledge which helps us to understand the results of what has gone before, just as we are prepared for the full-blown rose after we have seen the bud. Or, to be more practical, just as we use the simplest principles of arithmetic to help us to understand the more difficult ones; sometimes we scarcely remember that in the last lessons of the book we unconsciously apply the first tables and rules which were so difficult to us in the beginning. I shall not try, because I have not space, to give a connected account of Christian architecture, but I shall endeavor to give such an outline of its rise and progress in various countries as will make a good foundation for the knowledge you will gain from books which you will read in future.