If you drilled a hole in New Zealand so that a straight line could run through the centre of the Earth, you would eventually make a hole in North-West of Spain. It’s the principle of antipodes. More inside the post.
In geography, the antipodes of any place on Earth is the point on the Earth's surface which is diametrically opposite to it. Two points that are antipodal to one another are connected by a straight line running through the centre of the Earth.
You can check out here what place on Earth is opposite to yours.
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