Wilson Hall is the total opposite of depressing for me. Especially the interior is quite beautiful:

https://3.bp.blogspot.com/-UOpsfRLRr_I/VbhWuR4OeBI/AAAAAAAAB...

https://live.staticflickr.com/3800/33033871090_f658526696_b....

The art and architecture around the lab has a surprisingly rich history dating back to its first director who was also a sculptor/artist: https://history.fnal.gov/historical/art_arch/art_architectur...