It is a mistake to suppose that the whole of Paris has been rebuilt; for, apart from Notre Dame and such well-known Romanesque and Gothic churches as St. Etienne-du-Mont, St. Germain, the tower of St. Jacques, and the Sainte Chapelle, there are gabled houses of considerable age in many of the by-ways. These are almost invariably covered with a mask of stucco that does its best to hide up their seventeenth-century or earlier characteristics. The beautiful and dignified quadrangular building that is now called the Musee Carnavalet, was the residence of the Marquise de Sevigne and was built in the sixteenth century, although altered and added to in 1660. Earlier than this is the fascinating Hotel Cluny, a late Gothic house built as the town residence of the abbots of Cluny. This building even links up modern Paris with the Roman _Lutetia Parisiorum_. Another interesting architectural survival is the Hotel de Lauzan, a typical residence of a great aristocrat of the days of _Le Roi soleil_. The Palais du Louvre, dating in part from the days of Francois I., the Tuileries, begun in 1564 and finished by Louis XIV., and the Conciergerie wherein Marie Antoinette and Robespierre were confined, are buildings of such world-renown that it is scarcely necessary to mention them. In many ways Paris is similar in arrangement to London. It is divided in two by its river, which cuts it from east to west, and the more important half is on the northern bank. The wealthy quarters are on the west and the poorer to the east. The great park, the Bois de Boulogne, is also on the west side of the city. In Paris, the ancient nucleus of the city was an island in the river, but London, although it originated on a patch of land raised high above the surrounding marshes, was never truly insulated. The Bastille, which may be compared with the Tower of London, occupied a very similar position not far from the north bank of the river and at the eastern side of the mediaeval city. All the chief theatres and places of amusement are on the north side of the river, and, as in London, so are all the Royal Palaces; but here the parallels between the cities appear to end, and one observes endless notable differences.