| 31. | In 1942 Silva Celis uncovered a astronomical observatory of the Muisca.
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| 32. | The National Astronomical Observatory of Japan is located in Mitaka.
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| 33. | Very close to the museum, Villanueva built the Astronomical Observatory.
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| 34. | Huayna Capac built astronomical observatories in Ecuador such as Ingapirca.
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| 35. | Reitsema participated in the ground-based observations of National Astronomical Observatory.
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| 36. | The Steward Observatory maintains a small astronomical observatory with a telescope on the hill.
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| 37. | Built as an astronomical observatory, people still often ascend it to watch the sunset.
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| 38. | He built an Astronomical observatory and constituted an Orphan Asylum.
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| 39. | There is also located professional astronomical observatory within the park.
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| 40. | Happer opts to locate the refinery offshore and set up an astronomical observatory instead.
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