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With the Colorado state capitol building visible in
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With the Colorado state capitol building visible in the background, partygoers dance to live music and smoke pot on the first of two days at the annual 4/20 marijuana festival in Denver, Saturday April 19, 2014. The annual event is the first 420 marijuana celebration since retail marijuana stores began selling in January 2014.(Credit: AP / Brennan Linsley)

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4/20 Marijuana Festival pictures 2014

The first annual 420 marijuana festival celebrates smoking pot and listening to live music in Denver, since legal retail began in 2014. The event lasts two days.