Historians believe that building each wall could take some 20-30
years. That's a piece of work, but it was worth the time and efforts,
the walls have been used for defence of a town throughout all history.
In 1929 by Stalins order they start building so called defence line
around western side of Kiev and some bunkers has been mounted right
into the walls. Since then the embrasures, the bunker openings, overlook everyone.
It is the openings of bunker N205. There were several embrasures. This had
an underground passages and had enough room for more then 100 soldiers
to stay inside. This bunker is unexplored, it stays closed since war.
They closed many bunkers for people not to blow on mines.