Widmannstätten (crater)
 Widmannstätten is a lunar crater in the southern part of the Mare Smythii near the eastern limb of the Moon. The rim of this crater has a wide gap along the western side where it is joined to the larger Kiess. There is also a gap in the northern rim where the crater floor is joined to the adjacent lunar mare. The dark interior floor of this formation has been flooded by lava leaving a level interior surface and a shallow surviving rim.