The place we are going to speak about in this post is really hard to visit. It's surrounded by a fence and guarded by special men with dogs. This is the highly protected Command Post of the Missile Division. Its building wasn't finished - the military abandoned it in 2010. And now it's being actively sawed up into pieces of metal...
Having lost its top, the "sphere" (also known as a "hedgehog") became a bit less attractive though its inner structure is now much better seen.
The sphere was designed to enable survival during a nuclear war.
A hollow metal ball was built inside a large mine. Then a huge 4-story module block was suspended on huge shock absorbers inside of it. It contained control and communications equipment, life support systems and rest rooms.