If these buildings look familiar, there’s a reason! The abandoned observatory is based heavily on Chabot Space Center, located in the hills above Oakland, CA. I remember going on a field trip in elementary school to the original observatory, built in the early 1900s, but unfortunately the whole center had been redone by the time I came back in 2017. I imagine the original buildings are still standing somewhere nearby, but I was unable to locate them. Sad face.