urban center vs Punta Arenas

urban center and Punta Arenas both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Punta Arenas	Yes	No	No	No

urban center (noun)	Punta Arenas (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in southern Chile on the Strait of Magellan; the southernmost city in the world