Your sentence as it stands does not make much sense to me. I would expect another word or phrase at the end. " Perhaps in the context of the whole original paragraph the meaning would be more clear.
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AnonymousBut on the second thought I've taken it as a sentence with the relative adverb "where" that is doing the job of the relative pronoun "which". In such a case if we substitute "of which" with "of where" then, in my opinion, "of" can be left alone at the end of the sentence.I agree with you that "I know some places which I've had some experiences