I am not sure if the modern mix of group theory and differential geometry which forms the foundation of theoretical physics today can qualify as such, even though the word "geometry" does bring the expectation that we should be able to "see" the things we are talking about.
I am not sure if the modern mix of group theory and differential geometry which forms the foundation of theoretical physics today can qualify as such, even though the word "geometry" does bring the expectation that we should be able to "see" the things we are talking about.