This is the 8465th most frequent Russian word.
неаполя
"Неаполя" is not a standard Russian word; it may be a misspelling or a form of "Неаполь," meaning "Naples" (the Italian city).
Here, 'Неаполя' is used as the genitive case to express possession or association with Naples.
В Неаполя есть множество исторических достопримечательностей.
In Naples, there are many historical landmarks.
In this sentence, 'Неаполя' is again in the genitive case, indicating the location associated with Naples.
На берегах Неаполя всегда красиво.
The shores of Naples are always beautiful.
The word 'Неаполя' is used in the genitive case here to indicate the subject of the sentence, specifically, Naples' architecture.