The mention of Spain reminded me of the Sant Pau hospital, which Domènech i Montaner designed in contrast to typical hospitals with the idea that beautiful places could be more therapeutic. It's a restored UNESCO site now that hosts events rather than patients (it stopped functioning as a hospital a decade ago). It being built 100 years ago, I imagine it may fall short in suitedness for medicine today, but the conversion of beautiful place to museum/event venue aligns a bit with your sentiment.

https://www.barcelonas.com/hospital-de-sant-pau.html