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</html><thumbnail_url>https://scienceblog.com/experimentalfrontiers/wp-content/uploads/sites/7/2025/04/Pole-drift-1024x764.png</thumbnail_url><thumbnail_width>1024</thumbnail_width><thumbnail_height>764</thumbnail_height><description>In just the last 20 years, the North Magnetic Pole has moved 400 miles out of Canada and into the Siberian side of the geographic pole. In Derinkuyu, Turkey, there is an entire underground city, half a million square feet of living space extending hundreds of feet down. It was built in a time before ... Read more</description></oembed>
