Nouns in "Hawaii is one of the most beautiful places on earth"

Identifying Nouns in the Sentence

Sentence: "Hawaii is one of the most beautiful places on earth."

Nouns:

1. Hawaii — Proper noun (subject).
2. places — Common noun (object of preposition "of").
3. earth — Common noun (object of preposition "on").

Note: "one" functions as a pronoun here; "most beautiful" is a superlative adjective phrase modifying "places".