i just posted this...repost maybe.
i don't go out in the city often, so i just searched this online. sounds like the perfect place. close and ...
"The Scene
The Beacon Hill Pub's status as Boston's pre-eminent dive bar owes something to the contrast of its unlikely address on classy Charles Street. Ridiculously low drink prices attract a few down-on-their-luck types, but on most nights, recent college graduates and young State House workers pack the pub's two rooms with enough hormones to fuel an MTV special. Bartenders give all patrons the same gruff, straightforward service.
The Draw
Thanks to the smoking ban, the BHP isn't nearly as filthy as it used to be, but it's still a dump. Sticky floors, plastic pint glasses and questionable bathrooms are charming to some, disturbing to others. Regardless, most everyone comes for the same simple reason: This is the cheapest spot around for pints of watered-down Bud Light or lethal Red Bull-and-vodkas. As befits a true dive, many patrons pass the time chucking darts or watching the Sox."
http://boston.citysearch.com/profile/11352380/
http://maps.google.com/maps?num=50&hl=en&safe=off&client=firefox-a&rls=org.mozilla:en-US:official&hs=obg&q=museum+of+science+boston&um=1&sa=N&tab=wl