Which of the following is not an architectural feature: quatre-foiled windows, vaulted ceiling, or Geometrical Gothic? Given the previous question, write a context that contains the answer. It can be 1 - 20 sentences. Context:
Inner and outer vestibules lead to the octagonal chapter house, which is of exceptional architectural purity. It is built in a Geometrical Gothic style with an octagonal crypt below. A pier of eight shafts carries the vaulted ceiling. To the sides are blind arcading, remains of 14th-century paintings and numerous stone benches above which are innovatory large 4-light quatre-foiled windows. These are virtually contemporary with the Sainte-Chapelle, Paris.