What is under WPAFB Building 18?

What is under WPAFB Building 18?
Long rumored to house "Biological artifacts" related to the UFOB crash recoveries, this is Building 18 at Wright-Patterson Air Force Base (Area B). Is anyone familiar with what is officially said to be located here? Or has an underground annex to Building 18 even been acknowledged? Am hoping some of our insanely talented researchers on UFOB may be able to dig something up. Building 18 is located at 39°47'20.5"N, 84°05'44.7"W. I've also noted an area that is unusual looking. Can't seem to find any information whatsoever as to its purpose, current or historical. Very little information on the entire complex outside a few LOC photos and field notes. From the imagery, we can see multiple large cryogenic coolant storage tanks along with a giant chilling tower, one much larger than you'd expect to find for a buliding that size. Of note is the cooling tower's massive cold water outlet, which plunges directly down into the parking lot suggesting additional infrastructure below. Not really related to UFOB, but damage from a fire that took place in the adjacent buildings a few years back can still be seen. submitted by /u/Crafty_Whereas6733 [link] [comments]