Symmetry

There are 72 NRICH Mathematical resources connected to Symmetry
Topkapi Palace
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Topkapi palace

These images are taken from the Topkapi Palace in Istanbul, Turkey. Can you work out the basic unit that makes up each pattern? Can you continue the pattern? Can you see any similarities and differences in the designs?
Frieze Patterns in Cast Iron
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Frieze patterns in cast iron

A gallery of beautiful photos of cast ironwork friezes in Australia with a mathematical discussion of the classification of frieze patterns.