598 Fifth Ave. at Balboa
You can enter many an "Irish pub" in San Francisco with an ample Guinness flow and trad music on the PA that is about as Irish as a bowl of Lucky Charms floating in green beer. There is no Guinness on tap here in this small Inner Richmond corner bar, but don't let that fool you: This is the real Mac Aodha. The walls are covered with hurling posters, flags of counties back in Ireland, and newspaper clippings and other nuggets of Irish-American lore dating back to the 1960s. If you insist on a dark pour, owner Annie O'Keeffe — yes, that's her name on the sign outside — will keep cracking cans of Guinness open for you as long as you need.