Amongst Aūlūgh Beg Mīrzā's buildings inside the town are a College and a monastery (_Khānqāh_). The dome of the monastery is very large, few so large are shown in the world. Near these two buildings, he constructed an excellent Hot Bath (_ḥammām_) known as the Mīrzā's Bath; he had the pavements in this made of all sorts of stone (? mosaic); such another bath is not known in Khurāsān or in Samarkand.[374] [Sidenote: Fol. 46b.] Again;—to the south of the College is his mosque, known as the Masjid-i-maqaṯa` (Carved Mosque) because its ceiling and its walls are all covered with _islīmī_[375] and Chinese pictures formed of segments of wood.[376] There is great discrepancy between the _qibla_ of this mosque and that of the College; that of the mosque seems to have been fixed by astronomical observation. Another of Aūlūgh Beg Mīrzā's fine buildings is an observatory, that is, an instrument for writing Astronomical Tables.[377] This stands three storeys high, on the skirt of the Kohik upland. By its means the Mīrzā worked out the Kūrkānī Tables, now used all over the world. Less work is done with any others. Before these were made, people used the Aīl-khānī Tables, put together at Marāgha, by Khwāja Naṣīr _Tūsī_,[378] in the time of Hulākū Khān. Hulākū Khān it is, people call _Aīl-khānī_.[379] (_Author's note._) Not more than seven or eight observatories seem to have been constructed in the world. Māmūm Khalīfa[380] (Caliph) made one with which the _Mamūmī_ Tables were written. Batalmūs (Ptolemy) constructed another. Another was made, in Hindūstān, in the time of Rājā Vikramāditya _Hīndū_, in Ujjain and Dhar, that is, the Mālwa country, now known as Māndū. The Hindūs of Hindūstān use the Tables of this Observatory. They were put together 1,584 years ago.[381] [Sidenote: Fol. 47.] Compared with others, they are somewhat defective. Aūlūgh Beg Mīrzā again, made the garden known as the Bāgh-i-maidān (Garden of the Plain), on the skirt of the Kohik upland. In the middle of it he erected a fine building they call Chihil Sitūn (Forty Pillars). On both storeys are pillars, all of stone (_tāshdīn_).[382] Four turrets, like minarets, stand on its four corner-towers, the way up into them being through the towers. Everywhere there are stone pillars, some fluted, some twisted, some many-sided. On the four sides of the upper storey are open galleries enclosing a four-doored hall (_chār-dara_); their pillars also are all of stone. The raised floor of the building is all paved with stone.