News World Know about the underground Opal city of Australia

Know about the underground Opal city of Australia

New Delhi: Known as the Opal capital of the world, Coober Pedy is a town in South Australia.The interesting fact about this place is people live underground.This cavernous community was built by miners sheltering from

 



After this incident, mining started in the area.  

By 1999, more than 250,000 mine shaft were dug.

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