Sangam is the confluence of three of the holiest rivers in Hindu mythology - Ganga, Yamuna and the mythical Saraswati. At the Sangam, the waters of the Ganges and the Yamuna can be distinctly seen to merge into one. At Allahabad, the meeting point of the rivers is believed to have great soul cleansing powers and is a major pilgrimage site. It is even more holy because the invisible Saraswati river is supposed to the join the Ganga and Yamuna at this point