Together with two friends I went out to the old military buildings on Karljohansvern last summer, located in Horten (Norway).
The “close-up” picture here is taken on the entrance door to one of the storehouse buildings that is abandoned.
To read more about the place:
http://www.forsvarsbygg.no/festningene/Festningene/Karljohansvern/
Pål André Eriksen 