I am having a problem with clauses that have "where" instead of clauses that have "that"
i.e. We went to a town where everyone was nice
I thought that you you used "where" in the objective case and "that" in the subjective case.
But...
I went to the store that my aunt owns.
I wirk in a store where my aunt works.
They are both in the objective case, but sometimes we don't use "where"
Is it something to do with adjective clauses and adverbial clauses?