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Updated: October 1, 2019
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The rock formations at the Imasaki Coast, on the volcanic island of Miyakejima, were formed by flowing lava from an eruption that occurred in 1643. Centuries of erosion created a rock with two arch-shaped holes, which resembled a pair of spectacles. It's known as Megane-iwa Rock, because "spectacles" is "megane" in Japanese. Unfortunately, the Isewan Typhoon of 1959 caused one of the arches to collapse, leaving the rock in its current form.