( Ho> ) 
molifh'd, and quite raz^d to the Ground, and all the Vaults 
and Under-ground Works filTd up except the large Obfer« 
vatory, which Gajfendus tells us, in the Liie oi this Noble 
Dane^ was diftinguilh'd from all the reft of his Apartments 
under ground, that were very many, by a folid round 
Stone Wall, part of which remains ftill. This was his 
great Obfervatory, and was calFd by h\ra Stelkbmgum., or 
the City of Stars 3 as the CaCtle was Ui dnihurgum., or the 
City of the Heavens. The Siruaflon was pleafant no 
doubt, it being on a very little rifing ground, in the middle 
of a plain Ifland, not above three miles round* The fame 
Author tells us, the King cf Denmarlis Liberality was lb 
great towards this Learned man, that the beft Workmen 
were employed about it, and every thing well contrived 
both for pleafure and conveniences of room, for Inftruments 
and Aftronomical Obfervations above and under ground, 
befides noble Gardens, Filh-ponds and a Park : But the Fate 
of War between Sweden and Denmark, fometimes one being 
Mafter, and fometimes the other, of this Ifland, no one 
Stone is left of this Magnificent Superftrufture. His Inftru- 
ments, that were very fine, are now fcatterd up and down 
in Germafiy^ and feme fe\? remain in Copenhagen 5 his o\\n\ 
Cceleftial Globe I faw there in the Rown Tower, v?hich was 
fix foot and three quarters in Diameter. 
This Tower was built 1601, for the making Aftronomi- 
cal Obfervations, near the B.oyal College in Copenhagen, <xu^ 
is above a hundred and fifty foot high, whofe Area on the 
top is fixty foot diam.eter : The pailage up to it is large 
enough for two Coaches, and the Afcent fo eafie and hard- 
ly perceivable, that it ferv'd for a place of Parade for their 
Gentry, when they had a mind to take the Air in their 
Coaches, riding up to the top, and fo round the Ring, as 
well as for an Obfervatory. 
But Monfieur B^omer^ the great Mathematician and Axftro- 
nomer of the prefent Age, has. converted rue upper part . of 
this Tower now to other ufcs^, where in a dark Room he 
Gggggggg 2 has 
