Something i have never checked or even thought about is the visible sights you can see from the earth of the moon. If your a follower of this blog you will have seen the recent post of the moon in its full light from the sun, and i have never commented on anything or any object visible on it. Well tonight I got the head into the books and came up with a sure-enough answer to the two creators visible just on the lower side of the moon in the shot below. 
Grimaldi:
Feature Type: Crater, craters, a circular depression.
Named for: Francesco Maria; Italian astronomer, physicist (1618-1663).
Location: 5.50°S 68.30°W
Size: 172.0 km / 106.9 mi 
Crüger:
Feature Type: Crater, craters, a circular depression.
Named for: Peter; German mathematician (1580-1639).
Location: 16.70°S 66.80°W
Size: 45.0 km / 28.0 mi
Here is a video of the area:
Some links to these craters:
