Milo and the princesses Rhyme and Reason are characters in Norton Juster's novel The Phantom Tollbooth, and the locations described can all be found on that excellent book's excellent map, drawn by Jules Feiffer:
For each location listed in the puzzle, shade in the relevant map square or squares:
Since the princesses keep talking about "impeded vision," you should interpret the shaded squares as Braille, and come up with the answer, BIG WIG.