These two craters are in many ways like twins. Apart from their very similar names (Manilius is named after a Roman poet, Menelaus after a Greek astronomer) and sizes (Manilius, to the west, is six mles wider), each is a sharp, class 1 feature, with central peaks and a 100 mile radius ray system (roughly equal to their separation) and is very prominent around the full moon.
Photo: António Cidadão. His Home Page of Astrophotography includes stereograms, animations, and "Seven Craters a Week" from his forthcoming photographic lunar atlas.