Interiors are bright and with ample space; very richly ornamented plaster ceilings are common; the walls of main rooms are often lined with wainscot panelling, and noble oak staircases are frequent. In the reign of James I., our first Renaissance architect of mark, Inigo Jones (1572-1652) became known. He was a man of taste and genius, and had studied in Italy. He executed many works, the designs for which were more or less in the style of Palladio. These include the addition of a portico to the (then Gothic) cathedral of St. Paul's, and a magnificent design for a palace which Charles I. desired to build at Whitehall. A fragment of this building, now known as the Chapel Royal Whitehall, was erected, and small though it be, has done much by its conspicuous position and great beauty, to keep up a respect for Inigo Jones's undoubted high attainments as an artist. More fortunate than Inigo Jones, Christopher Wren (1632-1723) had just attained a high position as a young man of science, skill, and cultivation, and as the architect of the Sheldonian Theatre at Oxford, when in 1666 the great fire of London destroyed the Metropolitan Cathedral, the parochial churches, the Royal Exchange, the Companies' Halls, and an immense mass of private property in London, and created an opportunity which made great demands upon the energy, skill, and fertility of design of the architect who might attempt to grasp it. Fortunately, Wren was equal to the occasion, and he has endowed London with a Cathedral which takes rank among the very foremost Renaissance buildings in Europe, as well as a magnificent series of parochial churches, and other public buildings. It is not pretended that his works are free from defects, but there can be no question that admitting anything which can be truly said against them, they are works of artistic genius, full of fresh and original design, and exhibiting rare sagacity in their practical contrivance and construction. St. Paul's stands second only to St. Peter's as a great domical cathedral of Renaissance architecture. It falls far short of its great rival in actual size and internal effect, and is all but entirely devoid of that decoration in which St. Peter's is so rich. On the other hand, the exterior of St. Paul's (Fig. 82) is far finer, and as the English cathedral had the good fortune to be erected entirely from the plans and under the supervision of one architect, it is a building consistent with itself throughout, which, as we have seen, is more than can be said of St. Peter's. The plan of St. Paul's is a Latin cross, with well marked transepts, a large portico, and two towers at the western entrance; an apse of small size forms the end of the eastern arm, and of each of the transepts; a great dome covers the crossing; the cathedral has a crypt raising the main floor considerably, and its side walls are carried high above the aisle roofs so as to hide the clerestory windows from sight.