_Prusa_, now called by the _Turks_ _Bursia_, the chief City of _Bythynia_, is seated at the foot partly, and partly upon the rising of the mount _Olympus_, which is one of the highest Hills of the lesser _Asia_. Its top is covered with Snow for nine or ten Months of the Year, several streams of Water flowing down the Hill continually, accounted very unwholesom from the Snow mixed with it. In the upper part of the City to the North-west lies the Seraglio, which is walled round; but the Emperors not residing here since their acquests in _Thrace_, or scarce making visits to this Imperial City, and none of their Sons living here of late, according to the former Policy of the _Turkish_ Emperors, who did not permit their Sons, when grown up, to be near them, but sent them to some Honourable Employment, accompanied with a Bassa and Cadi to instruct them in the Arts of War and Government, it lies now neglected and despoiled of all its ornaments. In this part also are the Sepulchers of _Osman_, the founder of the Family, which now Reigns, and his Son _Urchan_, who took the City, near a Mosch, formerly a _Christian_ Church dedicated to St. _John_, and where was formerly a Convent of Religious, built by _Constantinus Iconomachus_, where I saw the figure of a Cross still remaining upon the Wall. Here hangs up a Drum of a vast bigness, such as they carry upon the backs of Cammels, and I suppose is one of those which they used in the taking the Place. In the lower part, near the bottom of the Hill, _Morad_ the second, the Father of _Mahomet_ the Great, lies buried: near whereunto was formerly the Metropolitical Church of the _Holy Apostles_. The _Bezesten_, or Exchange, seems to be much better and larger than the great one at _Constantinople_, as are the several Caravanserais built for the use and accommodation of Merchants, and Travellers; in one of which, the Rice Chane, I took up my quarters. Without the City toward the East is the Mosch and Sepulcher of the Emperor _Bajazid_ the first, whom the _Turks_ call _Jilderim_ or lightning, and the Greek Writers λαίλαψ. Not far from hence is the Mosch of _Mahomet_ the first, and his Sepulcher. Toward the West upon the side of the Hill is the Mosch of _Morad_ the First, whom they call _Gazi_ or the Conqueror, near which he lies buried. There are in the whole about 124 Moschs, several of which were formerly _Christian_ Churches, and between fifty and sixty Chanes. The Castles built by _Osman_, when he besieged the City, are slighted and altogether unfortified, the one to the North, the other to the South-West. At _Checkerghe_, about a mile and a half out of Town, are the hot Baths, much frequented both by _Christians_ and _Turks_. They are made very Convenient to Bath in, and are covered over, that they may be used in all Weathers. Among others, there is a large round _Basin_, where they usually divert themselves by Swimming.