Romain Du Roi is a type created in the late 17th century commision by the king LouisXIV, the name literaly means Roman of the king. Unlike the previous roman type faces, this was the first typeface created from rational thinking, where the measurements and proportions where well thought out. As you can see from the image, a grid was use to created the typeface.

Fette Futura is another typedface created using geometry. Unlike the previous typeface this one was made in Germany in the early 1900s. Futura is one of the most used san serif typefaces in the world. There are used for many important materials,he Boston Celtics championship banners has futura letters, the game Elder scrolls also uses Futura. This goes to show how popular this typeface is.