The Moti Masjid — "Pearl Mosque" — is the small private mosque inside Agra Fort, built by Shah Jahan between 1648 and 1654 for the personal use of his courtiers. It is entirely of white marble, with three domes and a courtyard floor of black-and-white marble inlay.
Currently the mosque is usually closed to visitors due to conservation work, but its façade and the views down into its courtyard from elsewhere in the fort are visible. It is considered one of the most perfect Mughal mosques in India.