It's not a garden, and it's not in the opera! But it is a spacy room in the building of Radio America - 'The Safest Restaurant in the World', as they say. Guarded by armed policemen.
Wonderful (inspired by Scandinavia?) design and decor. Very attentive, competent, and caring service. Limited choise of dishes, those available rather small and decorative than lush and nourishing - but well prepared. Not cheap.
Usually not many guests - liked very much by American expatriates of a certain level and culture wanting to impress and enchant Czech girlfriends