Pathar Ki Masjid, literally meaning "Stone Mosque," stands as a testament to Bihar's rich Islamic heritage. Constructed in 1621 CE by Parvez Shan, the son of Emperor Jahangir, it is a marvel of Mughal architecture. The mosque's most striking feature is its construction material—it is entirely made of stone, which was unusual for the region at that time. The use of stone gave the mosque its name and ensured its survival through centuries of weathering and historical tumult. Architecturally, Pathar Ki Masjid blends Islamic and Hindu styles, reflecting the syncretic culture of medieval Bihar. The mosque's façade is adorned with intricate stone carvings, featuring both geometric Islamic patterns and floral motifs reminiscent of Hindu temple art. Elegantly carved stone pillars support the main prayer hall, while the mihrab (prayer niche) is beautifully decorated with Quranic inscriptions. The mosque's three domes, typical of Mughal architecture, are visible from afar and add to its grandeur. The central dome is larger and more elaborate than the flanking ones, creating a harmonious visual hierarchy. Despite its historical and architectural significance, Pathar Ki Masjid remains relatively unknown compared to other monuments in Bihar. This has inadvertently helped in preserving much of its original structure and décor, as it has not been subjected to excessive tourism or modern alterations. Today, the mosque serves as a place of worship and a reminder of Bihar's multicultural past. It stands as a symbol of the artistic and architectural achievements of the Mughal period in eastern India, offering visitors a glimpse into a bygone era of cultural synthesis and artistic excellence.