Boutique at the Teatr Wielki - Polish National Opera
The box office in the main lobby:
1 July– 31 August: closed
The Boutique and box office in the opera house’s left wing are open:
1 July– 31 August: Wednesday–Sunday, 11 a.m.–7 p.m.
The Opera Gallery and Theatre Museum:
1 July–26 September: Wednesday–Sunday, noon–6 p.m.