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Samuel Adams Brewery, Boston: All of the senses are put to good use on this hour-long tour, as travelers taste their way through the special malts used to brew Samuel Adams beer, smell the hops and discover the secrets of the entire brewing process -- from start to finish. Tours run every 45 minutes or so and are free of charge, although a voluntary donation of $2 is suggested, with all proceeds going to local charities.
(Courtesy TripAdvisor)