The Maha Kumbh Mela is one of the largest religious gatherings in the world, celebrated every 12 years at one of four sacred river-bank pilgrimage sites in India: Prayagraj, Haridwar, Ujjain, and Nashik. The event rotates among these locations, and every 144 years (after 12 Maha Kumbh Melas), a Maha Kumbh takes place specifically in Prayagraj (formerly Allahabad), marking it as the most spiritually significant of them all. Millions of pilgrims, saints, sadhus, and tourists come together to take a holy dip at the Triveni Sangam, the confluence of the Ganga, Yamuna, and the mythical Saraswati rivers.