Symmetry, Escher and Architecture Exploration
Facade of the Vrijzinnig Christelijk Lyceum, The Hague (1959)
1. Does this pattern show any reflectional symmetry? YES NO
2. Does this pattern show any rotational symmetry? YES NO
3. What rozette symmetry group does this pattern have?
Pillars in the Johanna Westerman School, The Hague (1959)
Escher designed three pillars for the central auditorium of the Johanna Westerman School in 1959.
The tiles were made by "De Porceleyne Fles", a tile and ceramics company from Delft. The three designs were carefully chosen by Escher to be educational.
The front column has a design consisting of lizards, which is based on regular division print 104.
The second column (whose close-up is in the middle) is based on regular division print 74.
The last column is based on print 96. 
4. What type of symmetries does the front column have?
5. What type of symmetries does the middle column have?
6. What type of symmetries does the last column have?
- D. Schattschneider, Visions of Symmetry, pg 244.