My favorite is the Concordia Ale House. Unless you're staying at the Kennedy School, you'll have to take a taxi there. It's worth it. They have 22 taps, and they have a really interesting selection of regional and international beers that you're not likely to have had on tap before. They also have the best pub grub in the city. It's nonsmoking, the wait staff know their beer and are free with the tasters.

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