The obſervatorium, built by Chriſtian VI. in ſuch a manner that a coach and horſes may aſcend to the top; here they keep the public library, and Tycho Brahe’s mathematical inſtruments, eſpecially his famous celeſtial globes, which are three yards thick in diameter.
Source: wiktionary
When all the persons whom br. O. had the purpose of visiting had been seen and he had done all he could for the Master, he visited the observatorium from the top of which there is a fine view of the surrounding country.
Source: wiktionary
Astronomical observations made at the observatorium at Greenwich
Source: wiktionary
The tombs of these Timurs are still to be seen in Samarcand; they are made of jasper, but one seeks in vain for the traces of the observatoria of Olug Beg.
Source: wiktionary
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