Already a treat just to be there, the Royal Opera House in London offers something special and a little different than attending a performance in a US theater. You'll notice it at intermission.
While in the US, a glass of wine and gourmet snacks are usually the refreshments at intermission, at the Royal Opera you can have ice cream. Yes, ice cream at an historic opera house.
It's served in a cute cup with a peel-back top. It's just enough to enjoy, yet still finish before the next act begins.
See also: Royal Opera House Performance Schedule