The Kali Pasir Mosque, situated in the bustling city of Tangerang, Banten, holds the distinction of being the oldest mosque in the Tangerang region, serving as a profoundly important landmark of early Islamic history and cultural integration. Established in 1700 by a Chinese Muslim named Tauhidin (also known as Ki'ay Kali Pasir), the mosque's architecture uniquely embodies the rich cultural synthesis that defines the area.