This is the 6244th most frequent Swedish word.
köpenhamns
"Köpenhamns" means "Copenhagen's" (possessive form referring to something related to Copenhagen).
The word 'köpenhamns' here denotes the genitive form, expressing possession showing that the center belongs to Copenhagen.
Köpenhamns centrum är full av historiska byggnader.
Copenhagen's center is full of historical buildings.
In this sentence, 'köpenhamns' again operates as the genitive form, indicating that Tivoli is a known entity associated with Copenhagen.
Jag har alltid velat besöka Köpenhamns kända Tivoli.
I have always wanted to visit Copenhagen's famous Tivoli.
Here, 'köpenhamns' is used to show ownership or association of the inhabitants to the city of Copenhagen.