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/https://public-media.si-cdn.com/filer/e7/9b/e79b87f8-55f9-4820-8439-eb5f2a3efd5e/42-58017954.jpg "Half of the Inhabitants of This Australian Opal Capital Live Underground | Travel | Smithsonian Magazine")
Half of the Inhabitants of This Australian Opal Capital Live Underground | Travel | Smithsonian Magazine
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