Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Old and New Towns of Edinburgh' has mentioned 'Volcano' in the following places:
Occurrence Sentence Text Source
The street layout, typical of the old quarters of many northern European cities, is made especially picturesque in Edinburgh, where the castle perches on top of a rocky crag, the remnants of an extinct volcano, and the main street runs down the crest of a ridge from it.