The 18th century telescope was located in an indoor observatory on the top floor

The 18th century telescope was located in an indoor observatory on the top floor of the building, with the side of the circular dome-shaped roof open, allowing a long telescope to be pointed diagonally upwards to observe the starry sky. Scholars gathered in the hollowed-out corridor surrounding the telescope, which rose up from the floor below, discussing something in the royal castle in the sky.

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