Great Ideas in Theoretical Physics?
Great Ideas in Experimental Physics?
Great Ideas in Economics?
etc
I did teach a course once called, Inventing the Information Age, in which we discussed all the inventions and ideas (starting from writing) all the way to modern computing infrastructure needed for a civilization to replicate our information age. This was not a single-field course, because the ideas/inventions were in language, physics, mathematics, and computer science. That made it more fun.