Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Durham Castle and Cathedral' has mentioned 'Speyer' in the following places:
Occurrence Sentence Text Source
Criterion (iv): Though some wrongly considered Durham Cathedral to be the first xe2x80x98Gothicxe2x80x99 monument (the relationship between it and the churches built in the xc3x8ele-de-France region in the 12th century is not obvious), this building, owing to the innovative audacity of its vaulting, constitutes, as do Spire [Speyer] and Cluny, a type of experimental model which was far ahead of its time.