Heh, underground entrance looks EXACTLY like our entrance within our smaller data center premises here in Riga, a former soviet nuclear shelter. In our case, t

Heh, underground entrance looks EXACTLY like our entrance within our smaller data center premises here in Riga, a former soviet nuclear shelter. In our case, there is exact same thing on the opposite side. It is designed that way because it lets explosive blast escape the the other doors... Here you can see, that "brother entrance" is on the other side. http://tour.deac.eu/Grizinkalns.html http://tour.deac.eu/Grizinkalns.html Except, we currently don't maintain it to a level that is required to withstand nuclear war, so sorry if you ever wanted those guarantees...