21. In the case of Durham Cathedral, flying buttresses have been employed, but are hidden inside the triforium gallery. 22. The side walls were built to and a temporary clerestory created in a roof that used the triforium for support. 23. On Pocztowa street, massive triforium windows are used on the ground floor and biforium ones on the first floor. 24. It encompasses the east end and derives its name from the 30 carved seraphim that grace the spandrels of the triforium . 25. Against the apse triforium on the east wall of the church stands the high altar with a mosaic St . Joseph. 26. The nave has seven crossings and the classical gothic elevation of arcades, triforium and high windows with a walkway beneath them. 27. The ancient basilica of San Giorgio Maggiore, also required restoration, retaining today only the apse triforium with columns and pilasters. 28. The pillars between the wide spans of the arcade supporting the triforium were meant to maximize the dynamic effect of the church. 29. A project that is proceeding is the creation of The Queen's Diamond Jubilee Galleries in the medieval triforium of the abbey. 30. The easternmost bay of the triforium appears to be Norman, but is the work of 14th-century Oratory Chapel mentioned above.
