Assertion: fortress's wall | /r/HasProperty | 2 m thick
Facets:
value: at its base
type: LOCATION
Source sentences:
text: The outer wall was 2 m thick at its base, and featured arched chambers on the level of the peribolos, crowned with a battlemented walkway, reaching a height of 8.5–9 m. Access to the outer wall from the city was provided either through the main gates or through small posterns on the base of the inner wall's towers.