Where is the world's longest lenticular telescope?
In Germany
In France
In Spain
In Norway
Big Spotlight - the world's longest 21-meter-long lens telescope. It is located in the astronomical observatory in Berlin.
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Answers by country
In Germany
In France
In Spain
In Norway
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Greece18
Australia26
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Italy10
India242
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Germany266
Poland3604
the United Kingdom98
Canada11
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Pakistan15
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Austria45