The three-storeyed communication bunker we’ll visit today has been abandoned since 2005. Its location is very difficult to determine as it is hidden deep in the Bialowieza forest.
Find a small hill in the forest and if you are attentive enough you will see some massive hatches on its surface.
That used to be the main entrance. There was a big building above it.
An inclined descent is followed by a massive door.
“System number 8″. What can it mean?