This bomb shelter which is situated under the institute of corrosion somewhere in the Moscow Region has been exposed to water and dampness for a long time which made this place especially interesting.
There were times when the bomb shelter was drowned up to the ceiling but most of the time the water level does not exceed one meter. In winter, it gets dry which makes it possible to explore it.
This is the shelter's floor plan.
Its doors are eaten away with rust...
There are a bunch of bullet holes at one of the walls of the shelter.
In the restroom.