Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Old City of Acre' has mentioned 'Fortification' in the following places:
Occurrence Sentence Text Source
It consists of a modern counter-artillery fortification which includes a thick defensive wall, a dry moat, cannon outposts and three burges (large defensive towers).
The current building which constitutes the citadel of Acre is an Ottoman fortification, built on the foundation of the citadel of the Knights Hospitaller.