Last August I could visit Madrid alone and I walked unhurried through the old town. After Plaza Mayor (Main Square) I took a coffee in a bar near Tirso de Molina Square from which I saw this mathematical building. Can it be real? It’s an Escher tessellation!
The facade seems quite new and it’s based on Escher’s Metamorphosis:
It was a very good surprise!
Location: Conde de Romanones 14 (map)