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The Greek Island of geometrical wonders

Pyrgi is a puzzling medieval village in the middle of the Mediterranean island of Chios. In this hamlet, every house façade is decorated with hypnotical geometric patterns that create a three-dimensional wonderland for those who stroll through its streets. The decoration technique is called xysta or sgraffito: an engraving using symmetrical tools. Today, ethno-mathematicians are studying the concepts behind the complex decorations, as an insight into medieval mathematics. What is the true story hidden behind the geometrical patterns of Pyrgi?

Video by Iliana Mier, Executive Producer Anna Bressanin