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Berlin, Germany
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Attraction
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Alt-Treptow 1, 12435 Berlin, Germany
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N52° 29' 9" E13° 28' 34"
(52.485833333333, 13.476111111111)
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The Archenhold Observatory, named in honor of Friedrich Simon Archenhold, is an observatory in Berlin-Treptow. It houses the Großer Refraktor (Great Refractor), which is the longest pointable telescope in the world. It is also called the Himmelskanone (Celestial Cannon).
