This place is an abandoned recreation and retreat center called “Beryozki” (“Birch trees”). It inlcudes a dwelling zone, a technical and entertaining zone (kitchen, canteen, library etc), a defense underground area.
It reads: “Comedy: “Beverly Hills Cop”, USA”.
This is a film distribution room.
These are food storage rules.
It’s a note for those who wants to go to an excursion to a monastery.
It’s a shelter plan.
It reads “bread”.
Source ; www.englishrussia.com