Just next to the Hilton and across the street from the Athenaeum, this might be a fine place to have dinner after a classical music concert. The decor is trying to create the atmosphere of interwar Bucharest, including street signs, murals and even a fountain, while some of the rooms have a clandestine touch, with interesting lighting systems that use even musical instruments. A couple of rooms have good views to the street nearby.
The menu is not very generous, but what they have there is always good. The menu comes on a blackboard and it is in Romanian only. So, unless your waiter speaks English (some do not), you have to try and make your way with the help of a guidebook, of fellow customers or of your common sense. The "varză a la Cluj" (Cluj style cabbage with spices), the musaca and the starters they have (especially the baked peppers, the zacuscă and the aubergine salad) are simple, but very good.
GPS - N44 26.504 E26 05.809
It lies across the street from the Athenaeum (if you are looking at the Athenaeum from its entrance steps, turn left and walked past its gate and across the street), near the Hilton and Revoluției Square. It is a pity the original location (larger) was reduced to just a couple of rooms...
Str. Episcopiei 3, http://www.bistronet.ro