A woman takes part in a global March for marijuana in Medellin, Colombia, May 7, 2016. The Global Marijuana March (GMM) is an annual rally held at different locations across the planet. It refers to cannabis-related events that occur on the first Saturday in May, or thereabouts, and may include marches, meetings, rallies, raves, concerts, festivals and information tables. The Global Marijuana March also goes by the name of the Million Marijuana March (MMM). It began in 1999. Hundreds of thousands of people have participated in over 829 different cities in 72 countries worldwide since 1999. There are local names for the event too. Such as: World Cannabis Day, Cannabis Liberation Day, Global Space Odyssey, Ganja Day, J Day, Million Blunts March, etc. The Global Marijuana March is a celebration embracing cannabis culture as a personal lifestyle choice. Participants unite to discuss, promote, entertain and educate both consumers and non-consumers alike. (Photo by Fredy Builes/Reuters)





A woman smokes marijuana during a global March for marijuana in Medellin, Colombia, May 7, 2016. (Photo by Fredy Builes/Reuters)





Thousands of people taken take part in a global March for marijuana in Medellin, Colombia, May 7, 2016. (Photo by Fredy Builes/Reuters)





A man smokes marijuana during a global March for marijuana in Medellin, Colombia, May 7, 2016. (Photo by Fredy Builes/Reuters)





A man smokes marijuana during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





A man smokes marijuana during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





A man smokes marijuana during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





A man smokes marijuana during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





People smoke marijuana during a global March for marijuana in Medellin, Colombia, May 7, 2016. (Photo by Fredy Builes/Reuters)





A man smokes marijuana during a global March for marijuana in Medellin, Colombia, May 7, 2016. (Photo by Fredy Builes/Reuters)





Smoking pipes are seen during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





A man smokes marijuana during a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





A woman taken part in a global March for marijuana in Bogota, Colombia, May 7, 2016. (Photo by John Vizcaino/Reuters)





People smoke marijuana during a demonstration calling for the legalization of marijuana in Medellin, Colombia, 07 May 2016. The annual Global Marijuana March is taking place in over 100 cities across the world in an effort to raise awareness of the benefits of medical cannabis and to call for the legalization of marijuana. (Photo by Luis Eduardo Noriega/EPA)





A man smoke marijuana during a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





A demonstrator with his face painted takes part during a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





A man smoke marijuana during a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





A man smoke marijuana during a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





Demonstrators hold up marijuana as they take part in a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





Demonstrators taken part during a rally for the legalization of marijuana in Mexico City, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)





Demonstrators wearing masks gestures during a rally for the legalization of marijuana near at Mexico City's Monument to the Revolution, Mexico, May 7, 2016. (Photo by Henry Romero/Reuters)