If you only want few specific places, the import should be done by presenting you with a list when you add a place reference somewhere. It makes no sense to do the import separately in such case.
The databases could evolve into such system at some point, but we first need to have the databases.
I’ve put mine into a repository:
EDIT:
Related thread - with Gazetter links:
EDIT2:
I really like how Gramps select proper names of places and containing regions based on date of the event in which the place is used. That allows to create a database which properly includes all the historic variations. Great feature.