The Bolo-Hauz ensemble (XVIII c.) is located opposite Ark Fortress. A mosque with a distinctive memorable sumptuous painted multicolumn "aywan" and the minaret, which are reflected in the waters of "Hauz" - the pond.
Registan Square to the west of the arch was developed in the past, the city center. It housed the office buildings, palaces, mosques and shopping section of the bazaar. On the territory of the square as the hospital was Dar Al-Shifa, where patients could receive medications ("dori") and dietary foods for medical treatment. The building resembled a hospital madrassas. There were wards for bed-ridden patient, outpatient, and pharmacy. In addition, doctors are trained.
Bolo-Hauz - the only remaining monument to the Registan Square. In the clear waters of the Hauz (pond) can see the reflection of the minaret and the brightest "aivan" - galleries with columns. The oldest part of the complex is a pond (Hauz), which is called the Bolo-Hauz. Bolo- Hauz - one of the few bodies of water, preserved in Bukhara. Prior to the arrival of Soviet government in Bukhara there were many ponds of this kind. They were a source of water for the population, but, unfortunately, were the sources of infectious diseases. Therefore, ponds were drained in the 20 - 30 years of the twentieth century.
It is said that Amir Shahmurad that the people got the nickname "Sinless Emir", a specially built Bolo-Hauz Mosque for public prayers outside the Ark, because he liked to be closer to his people.