The buildings show massive proportions in simple geometries using small bands of sculpture. Paying attention to the concentrated spaces of capitals and round doorways as well as the tympanum under an arch. The "Norman arch" is the rounded, often with mouldings carved or incised onto it for decoration. chevron patterns, frequently termed "zig-zag mouldings", were a frequent signature of the Normans. The cruciform churches often had deep chancels and a square crossing tower which has remained a feature of English ecclesiastical architecture. Hundreds of parish churches were built and the great English cathedrals were founded from 1083.