  
Decoration on the US Department of agriculture building suggesting a frieze pattern with fourth turns. What is the actual symmetry? | 
  
Bear steps: a frightening frozen frieze | 
  
Pma2 pattern with dihedral and lattice motifs | 
  
Frieze patterns on the frame of the painting by Ella May Stumpe | 
  
Fire escape | 
  
Foot prints 1 | 
  
Foot prints 2 | 
  
Foot prints 3 | 
  
Foot prints 4 | 
  
Foot prints 5 | 
  
Foot prints 6 | 
  
Foot prints 7 | 
  
Roadside Pattern in San Antonio | 
  
Floor pattern in the Nott memorial | 
  
Patterns adorning the Washing DC old post office | 
  
Pattern on Penn State library |