Jamaica Plain, MA
Not so much a cafe, as it is a legendary local hangout, Doyle’s has been around in one form or another since 1882 and is filled with more history than a particularly engaging episode of Where in the World Is Carmen Sandiego
, thanks to its pre-Prohibition bonafides and the revolving cast of Boston politicians and other known locals who frequent it (Mayor Menino even has a banquet room named after him). And, on top of choice Irish and local beers, Doyle’s just happens to sit next to the Sam Adams Brewery, so you can often find them serving special, new, and different styles of Sam that no other places have.
Los Angeles, CA
As the story has it, a man named Joe Sheridan invented Irish coffee at the Shannon Airport in 1938, and, soon after, famous SF columnist Stanton Delaplane brought said recipe to Tom Bergin's (and SF, of course), and they’ve been known as “the house of Irish coffee” ever since. Bergin, a lawyer from Boston with Irish roots, opened the bar in 1935, and it has the second oldest liquor license in LA County, and, as even more legends have it, the creators of Cheers
frequented the bar and used it for inspiration for the show. Though it has since passed on from the Bergin family through two iterations of ownership and was closed for an interval, they’re now back and’ve kept the famed cardboard shamrocks painted with names of regulars that cover the bar's ceiling. And yes, to answer the obvious followup: Kiefer Sutherland IS one of them.