metropolis vs Chula Vista

metropolis and Chula Vista both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Chula Vista	Yes	No	No	No

metropolis (noun)	Chula Vista (noun)
people living in a large densely populated municipality	an industrial city in southern California (south of San Diego) near the Mexican border
a large and densely populated urban area; may include several independent administrative districts