This photo showing pollution, the soon to be contamination of a river, is so enthralling and somehow beautiful. The colors, the swirls in the oil, the boy's reflection, are all really interesting to look at.

Piyal Adhikary/EPA
A silhouette is mirrored in waste machinery oil that will be washed into the river Ganga in Calcutta, West Bengal, India on July 23, 2007.