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Medellin, Colombia. May 3, 14. See more photos: 2013 May 4. Also: May 7, 2011-a. b, c.
Buenos Aires, Argentina. May 3, 2014. See also: 2012 May 5 photo.
Buenos Aires, Argentina. May 4, 2013. See street-level crowd shot.
Medellin, Colombia. May 5, 2012. See more photos: a, b, c.
Sao Paulo, Brazil. May 19, 2012. See another photo.
Toronto, Canada. May 2, 2009.
May 8, 2004 in Madrid, Spain. Million Joint March (La Marcha del Millón de Porros en Madrid, Mayo 2004). For info and photos:  .
May 4, 2002 in Paris, France in front of the Hotel de Ville.
Toronto, Canada. May 6, 2006.