In what region of earth would you have to be to have the sun pass through your zenith at some time during the year?

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In what region of Earth would you have to be have the Sun pass through your zenith at some time during the day..?

Your  Within 23.5 degrees of the equator in latitude--- the tropics.

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No it is an oblate spheroid apparently

Answermost of the time it would be ground into fine sediment,and sometimes they are carried away from the original location;