I saw St. Petersburg and in sunny weather, it is beautiful!
Concerning acoustics, I think it's a matter of the natural landscape that architects used. It turns out that the theater scene is located facing the mountain and the sound is reflected from it.
Those who come on Sunny days-the city is very festive. It can be said that you are too lucky to see it Sunny. Of course he is beautiful at any time of the year. Just perception and impressions are always different. Thanks for answering my question :)
I studied there and lived for a while, I saw that the city is different. Yes, it's always beautiful!