exploring the empty corridor of an underground nuclear bunker

20th abandoned accidents anxiety apocalypse architecture archival atomic blue bomb built bunker capturing century concept concrete conflict corridor danger decor disasters discovery eerie emergency empty equipment evoking exploration exploring extinguisher fire floor fluorescent government group hiding history indoors interior isolation light linoleum medical metal military mystery nuclear organized people pipe planning politics preparation preparedness protection retro safety security silence sink solitude spooky structure style survival tiled underground visible walls water