1. Symmetry
the quality of being made up of exactly similar parts facing each other or around an axis.

2. Symmetry that is designated by one single actual or imaginary line.
Linear Symmetry
Symmetry that is designated by one single actual or imaginary line.

3. Symmetry that is designated by multiple actual or imaginary lines.
Radial Symmetry
Cydonia on Mars
Symmetry that is designated by multiple actual or imaginary lines.

4. 3-D (Three-Dimensional)
having or appearing to have length, breadth, and depth.

5. Relief Sculpture
a piece of artwork that has depth on the surface but is not meant to be seen from all sides.