This map appeared in the National Geographic issue of 1968. The map allows us to see the Atlantic ocean floor. What I like about it is that it clearly shows all of the plains and slopes in the Atlantic. This map can be very useful when we want to study in greater detail the reasons to why earthquakes and tsunamis happen. It can also serve as a guide to observe the changes currently happening in the ocean floor. This image was taken from a website called maps, and here is the URL, http://www.maps.com/map.aspx?pid=15757.