When you use the pronoun "it" in this phrase, the speaker and the listener have an understanding of what specifically "it" refers to. In this case, "it" refers to a very specific game and not just some random game out there. However, "there" is used in this phrase to indicate that the speaker does not know one specific place where this car park (in U.S. we call it "parking lot" or "parking garage") is to be found. It is unknown as to the exact location so we cannot use "it" instead.

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