metropolis vs Innsbruck

metropolis and Innsbruck both are nouns.

Word	Noun	Adjective	Verb	Adverb
metropolis	Yes	No	No	No
Innsbruck	Yes	No	No	No

metropolis (noun)	Innsbruck (noun)
people living in a large densely populated municipality	city in southwestern Austria; known as a summer and winter resort
a large and densely populated urban area; may include several independent administrative districts