Dusseldorf vs urban center

Dusseldorf and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dusseldorf	Yes	No	No	No
urban center	Yes	No	No	No

Dusseldorf (noun)	urban center (noun)
an industrial city in western Germany on the Rhine	a large and densely populated urban area; may include several independent administrative districts