Par Alex Popovkin, Bahia, Brazil, via flickr
http://www.flickr.com/photos/12589168@N00/4323545162/in/photolist-7A4im7-aD5jiZ-7AEfaL-7AAqSr-7AArYc-8Q89LD-8Q88LV-7AvZXC-7AAria-7AEczN-7Ca7PU-7AEcGS-8Q89cM-7AsfQV-8QbcQd-7AEcjf-8Qbdmo-7A4jZy-7zZvkp-7zZsgt-7AAqxP