Rather dull place to visit. The graveyards contain some famous people like Tjaikovsky, but the place itself is boring. The insides of the church are nice, but photography isn't allowed in there (lots of people checking, I respect that). Best time to visit the church are when there is a service: the doors to the sacred parts are open, the dome is lit, lots of ladies kissing icons. When the lights go out all live seems to flow out of the church.