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    An attendee holds a water pipe at the High Times U.S. Cannabis Cup in Seattle, Washington

    An attendee holds a water pipe at the High Times U.S. Cannabis Cup in Seattle, Washington September 8, 2013. Washington state was one of the first states to legalize marijuana for recreational use after approving separate ballot initiatives last year, even as the drug remains illegal under federal law. The Cup features exhibitions as well as a marijuana growing competition. REUTERS/Jason Redmond (UNITED STATES - Tags: DRUGS SOCIETY)

    High Times U.S. cannabis cup

    The U.S. Cannabis Cup, a two-day festival sponsored by High Times magazine.

    The Cannabis Cup, founded back in 1987, brings together thousands of marijuana supporters, celebrities and artists, according to High Times.

    The expo includes vendors and judges from around the world, and competitions judging marijuana and seed samples for their variety and overall excellence. (Q13 FOX Seattle)