Manikarnik Kund located within the complex of Vishwanath temple is a place where Shiva Linga is presided. The Shiva Linga is bathed there from two source of water namely Ganesha's head and cow's head.
The most fascinating thing is that it is considered that the water from the two sources is coming from two holy rivers i.e. River Ganga and River Yamuna. The sight it present is absolutely captivating.