I knew it… CERN is just a Half-Life level
October 31st, 2009
CERN is a Half-Life Level 
… a group of us explored the little-traveled CERN tunnels recorded in the photos below. The resemblance to the original Half-Life–with its steam leaks, ventilation shafts, and dark corners hiding headcrabs–is uncanny (though my observations indicate that CERN’s dark corners are not fully populated).
Source: CERN Love