The observatory's interior would likely feature a unique blend of scientific precision and the architectural aesthetics of the time. The structure might be circular or octagonal, with a high domed ceiling designed to allow for the optimal study of celestial bodies. Large windows or open sections in the walls enable astronomers to observe the night sky without obstruction. The central area of the observatory would house an array of intricate, handcrafted astronomical instruments. These could include armillary spheres, astrolabes, and quadrants, all meticulously designed to measure and predict the movement of celestial bodies. In addition, there would be tables and workstations laden with parchment, inkwells, and writing implements, allowing scholars to record their observations and calculations. The space would be illuminated by strategically placed torches, lanterns, or candles, providing enough light for detailed work while still preserving the darkness necessary for celestial observations. Bookshelves might line the walls, holding manuscripts and tomes filled with ancient astronomical knowledge. The air would be cool and still, carrying a faint scent of parchment, wood smoke, and the metallic tang of the scientific instruments. A sense of wonder and discovery would permeate the observatory as scholars seek to unlock the mysteries of the cosmos and deepen their understanding of the universe.