Located in the capital city of Patna, Pathar Ki Masjid stands adjacent to Har Mandir Sahib and is popularly known as 'Saif Khan's Mosque' or 'Chimmi Ghat Mosque' or 'Sangi Masjid'. Another must visit mosque in the city of Patna is the Afghan architectural style built Sher Shah Suri Masjid, which was built by emperor Sher Shah Suri and is counted among one of the most exquisite and timeless monuments of Bihar.