Bolo-Hauz is the only monument of medieval culture of Bukhara which consists of the reservoir (hauz), Friday mosque and a minaret. Friday mosque Bolo-Hauz is situated in front of the entrance to Ark, emir fortress.
It is believed that emir had been visiting this place covered with carpets for daily sacred worship.
The most impressive feature of the mosque is the terrace design, whose pillars are grown from two trunks and have complicated stalactitic parts, decorated with flowered and geometrical ornament.