After more than 15 years atop Boston’s fine-dining scene, Barbara Lynch’s No. 9 Park may be familiar, but never ordinary. Facing the Boston Common, this restaurant is split between a dress-to-impress bar where Beacon Hill pols gather for after-work cocktails and a dining room favored for special-occasion gatherings, from proposals and wedding anniversaries to Harvard-graduation celebrations. Expect an expertly designed Cat Silirie wine list and elegant French-Italian cuisine (the foie-gras-and-prune-puree-filled gnocchi is guaranteed to please, and go with the steak frites if you’re dining at the bar), with an atmosphere to match.