In this Monday, March 18, 2013 photo, an Indian man walks past burning piles of garbage set afire at the end of the Mahakumbh mela festival at Sangam, the confluence of the Ganges, Yamuna and mythical Saraswati in Allahabad, India. The 55 days long festival, which is one of the world’s largest religious gatherings, concluded earlier this month.

Rajesh Singh / Associated Press