VJERZEHNHEELIGEN confectionery, the layman will then look up and see on all sides glittering decoration, surf and froth and rocket, and like it immensely. But if he starts walking round, he will soon find himself in utter confusion. What he has learned and so often seen of nave and aisle and chancel seems of no value here. This confusion of the lay mind, a keen thrill of the trained, is due to the ground plan, one of the most ingenious pieces of architectural design ever conceived (figs. 71-73). The church, if one looks at it from outside, has apparently a nave and aisles, and a centrally planned east end with polygonal ends to transepts and choir. In fact the choir is an oval, the transepts are circular, and the nave consists of two ovals following each other so that the first, into which one enters immediately one has passed the Borrominesque undulating front, is of the size of the choir oval and the second considerably larger. It is here that the altar of the fourteen saints stands. Here then is the spiritual centre of the church. So there arises an antagonism of great poignancy between what the exterior promises as the centre and what the interior reveals to be the centre—namely between the crossing where nave and transepts meet, and the centre of the principal oval. As for the aisles they are nothing but spatial residues. Walking along them, one feels painfully behind the scenes. What matters alone is the interaction of the ovals. At vault height they are separated by transverse arches. These however are not simple bands across from one arcade column to the one opposite. They are three-dimensional, bowing to each other, as the nodding arches had done on a small scale in thes I4th century. This has the most exciting and baffling effect at the crossing. Here in a church of the Gesu type—and Vierzehnheiligen appears from outside to belong to this type—one would expect a dome, the summit of the composition. Instead of that, there lies, as has been said before, just at the centre of the crossing," the point where choir oval and central oval meet. The two transverse arches struck from the piers of the crossing bend, the western one eastward, the eastern westward until they touch each other in exactly the same pkce as the ovals, purposely emphasising the fact that, where a normal Baroque church would have had the crest of the undulating move- ment of the vaults, Vierzehnheiligen has a trough—a most effective spatial counterpoint. Yet another spatial complication is incidentally provided by the insertion of a second minor transept farther west than the main one. Side altars are placed in it, just as altars stand against the east end of the church and against the east piers of the 137