Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Archaeological Areas of Pompei, Herculaneum and Torre Annunziata' has mentioned 'City walls' in the following places:
Occurrence Sentence Text Source
City walls south of the Nocera gate
The city walls were reinforced in Sarno stone in the early 3rd century BC (the limestone enceinte, or the "first Samnite wall").
The Villa of the Papyri, outside the city walls, is an opulent establishment.
The Villa of the Mysteries is an enormous residence just outside Pompeiixe2x80x99s city walls, developed from a modest house built in the 3rd century BC, named from the remarkable wall paintings in the triclinium, which depict the initiation rites ('mysteries') of the cult of Dionysus.