metropolis vs Bruges

metropolis and Bruges both are nouns.

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

metropolis (noun)	Bruges (noun)
people living in a large densely populated municipality	a city in northwestern Belgium that is connected by canal to the North Sea; in the 13th century it was a leading member of the Hanseatic League; the old city (known as the City of Bridges) is a popular tourist attraction
a large and densely populated urban area; may include several independent administrative districts