The term cathedral actually carries no implication as to the size or ornateness of the building, although many cathedrals are impressive edifices simply because diocesan celebrations typically require the capacity of one of the larger churches in the diocese. Thus, the term cathedral is often applied colloquially to large and impressive churches that do not function as cathedrals, (e.g. the Arctic Cathedral in Tromsø, Norway and the Sagrada Família, a minor basilica in Barcelona.).