EntityQ220919· pop 42· linked from 3,069 articleskeystoneSign in to savearchitectural element: wedge-shaped stone of an archConnectionsarchEntityvoussoirEntityItalyCountrySpainCountryJesusConceptWorld War IConceptBarcelonaEntityMunichEntityPennsylvaniaEntityMilanCityInternational Standard Book NumberEntitySalt Lake CityEntityfaceEntityWikisourceEntityBook of MormonEntityMantuaEntityFreemasonryConceptJoseph SmithEntityThe Church of Jesus Christ of Latter-day SaintsEntityUniversity of PennsylvaniaEntityCategoriesArches and vaultsArchitectural elementsOrnaments (architecture)