The Kumbha Mela is inscribed on the UNESCO’s Representative List of Intangible Cultural Heritage of Humanity. It is a mass Hindu pilgrimage of faith in which Hindus gather to bathe in a sacred or holy river. Traditionally, four fairs are widely recognized as the Kumbh Melas: the Haridwar Kumbh Mela, the Prayag Raj Kumbh Mela, the Nashik-Trimbakeshwar Simhastha, and Ujjain Simhastha.
These four fairs are held periodically at one of the following places by rotation: Haridwar, Prayag Raj (Allahabad), Nashik district (Nashik and Trimbak), and Ujjain. The main festival site is located on the banks of a river: the Ganges (Ganga) at Haridwar; the confluence (Sangam) of the Ganges and the Yamuna and the invisible Sarasvati at Prayag Raj; the Godavari at Nashik; and the Shipra at Ujjain.
Bathing in these rivers is belived to cleanse a person of all sins.