You may remember the story of how the first European Conference on Intelligent Design (TDI Europe) was chased out of two universities in Portugal only to find refuge in León, Spain.
The accompanying photos show our field trip to Altenburg Abbey. The ceiling painting was of the sciences. You can see a telescope and astrolabe in the close up.
Clearly a naturalistic bias is at work here and imposes a limit on the spectrum of alternative explanations that is even considered to be permissible.