What is the Australian town Coober Pedy known for?
The town is sometimes referred to as the "opal capital of the world" because of the quantity of precious opals that are mined there. Coober Pedy has over 70 opal fields and is the largest opal mining area in the world.
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What was the reason to build Canberra for Australian capital, rather than selecting one of the existing large cities?
safe location far from the sea
wish of the Indigenous Australians
low land price
dispute between Sydney and Melbourne
In which major European city, there is a volcano that may soon erupt?