Moti Masjid Red Fort Delhi
Immediately west of the baths is the Moti Masjid (Pearl Mosque), the only mosque ever built within the Red Fort. The devout Aurangzeb commissioned this tiny mosque in 1659 in the manner of a royal chapel, thus saving himself regular journeys to the Jama Masjid, outside the Red Fort.
The Moti Masjid of Red Fort Delhi is regarded as defining the stage when Mughal architecture began to decline from its zenith, which had been reached in the reign of Shah Jahan. The courtyard is not large enough. The three domes are cramped and the decoration is too heavy and excessive. The present name of the building comes from its smoky, white marble, resembling a pearl, but the mosque's domes were originally of gilded copper and not replaced by marble until 1857. The finials to the domes bare unusually dominant structure recalling a Buddhist stupa. In spite of these criticisms, however, the craftsmanship exhibited throughout, particularly the petra-dura work of the cornice, and the prayer hall's pavement remains superb. The fine bronze door to the courtyard should be note .Token donations on entry (except Fridays) are expected.
An early description refers to the splendid Diwan-i-Khas, surprisingly, as the ghusalkhana (washing room); it is assumed that this was because the next pavilion to it was the hammam(bath house). This consists of three rooms, one of which is a Turkish style sauna. Fine marble and petra-dura work survive, but the baths have been restored later.