urban center vs 's Gravenhage

urban center and 's Gravenhage both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
's Gravenhage	Yes	No	No	No

urban center (noun)	's Gravenhage (noun)
a large and densely populated urban area; may include several independent administrative districts	the site of the royal residence and the de facto capital in the western part of the Netherlands; seat of the International Court of Justice