Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Qal’at al-Bahrain – Ancient Harbour and Capital of Dilmun' has mentioned 'Masonry' in the following places:
Occurrence Sentence Text Source
The fortifications covered an area of 15xc2xa0ha (37 acres), and the walls were built with varying thickness by using stone masonry, and had gates which allowed transport and passing through, such as of donkey caravans.