 There are a very small number of buildings in the Romanesque style, such as Autun Cathedral in France and Monreale Cathedral in Sicily in which pointed arches have been used extensively, apparently for stylistic reasons.It is believed that in these cases there is a direct imitation of Islamic architecture.At other late Romanesque churches such as Durham Cathedral, and Cefalù Cathedral, the pointed arch was introduced as a structural device in ribbed vaulting.