For years, like a welcoming beacon, the Dublin House's neon harp has blinked invitingly. This very old pub is a no-frills Irish saloon and the perfect spot for a drink after visiting the nearby Museum of Natural History or Central Park. There's a long, narrow barroom up front and a bigger room in the back that's good for groups. Original wood veneer detail remains adding to the pub's charm. The Guinness is cheap and drawn perfectly by the very able and sometimes crusty bartenders. Best enjoyed in the late afternoon or early evening when the regulars populate the bar. Stay away on weekend nights and St. Patrick's Day when the place is overrun with amateurs; frat boys and sorority girls on pub crawls.