THE object and plan of these Historical Handbooks is somewhat different from that of any other guides at present before the public. They do not compete or clash with such existing works; they are rather intended to supplement than to supplant them. My purpose is not to direct the stranger through the streets and squares of an unknown town towards the buildings or sights which he may desire to visit; still less is it my design to give him practical information about hotels, cab fares, omnibuses, tramways, and other every-day material conveniences. For such details, the traveller must still have recourse to the trusty pages of his Baedeker, his Joanne, or his Murray. I desire rather to supply the tourist who wishes to use his travel as a means of culture with such historical and antiquarian information as will enable him to understand, and therefore to enjoy, the architecture, sculpture, painting, and minor arts of the towns he visits. In one word, it is my object to give the reader in a very compendious form the result of all those inquiries which have naturally suggested themselves to my own mind during thirty-five years of foreign travel, the solution of which has cost myself a good deal of research, thought, and labour, beyond the facts which I could find in the ordinary handbooks. For several years past I have devoted myself to collecting and arranging material for a set of books to embody the idea I had thus entertained. I earnestly hope they may meet a want on the part of tourists, especially Americans, who, so far as my experience goes, usually come to Europe with an honest and reverent desire to learn from the Old World whatever of value it has to teach them, and who are prepared to take an amount of pains in turning their trip to good account which is both rare and praiseworthy. For such readers I shall call attention at times to other sources of information. These guide-books will deal more particularly with the Great Towns where objects of art and antiquity are numerous. In every one of them, the general plan pursued will be somewhat as follows. First will come the inquiry why a town ever gathered together at all at that particular spot—what induced the aggregation of human beings rather there than elsewhere. Next, we shall consider why that town grew to social or political importance and what were the stages by which it assumed its present shape. Thirdly, we shall ask why it gave rise to that higher form of handicraft which we know as Art, and towards what particular arts it especially gravitated. After that, we shall take in detail the various strata of its growth or development, examining the buildings and works of art which they contain in historical order, and, as far as possible, tracing the causes which led to their evolution. In particular, we shall lay stress upon the origin and meaning of each structure as an organic whole, and upon the allusions or symbols which its fabric embodies.