Cathedrals are generally in the shape of a cross, which has both symbolic meaning and functional practicality, allowing space for clergy, choir, chapels, processions, a pipe organ and other activities and objects associated with cathedral tradition.
A cathedral, in common with other Christian churches has an altar or table, and a baptismal font. Cathedrals of monastic foundation may still have a square cloister, which traditionally provided an open area where secular activities took place protected from the weather. Some cathedrals also have a chapter house where the chapter, essentially the management committee of a cathedral, meet.
Many cathedral buildings are very famous for their architecture and have local and national significance. They also house treasures such as stained glass, carvings, art and sculpture, historic tombs, rich furniture and reliquaries. Most UK cathedrals are Listed Buildings and some are UNESCO World Heritage Sites.