The Sagrada Família architecture is based on a 7.5-metre modular system and ratios derived from the number 12.
Architect Antoni Gaudí used complex polyhedrons, including dodecahedrons and octahedrons, to crown the building's towers.
Structural stability is achieved through innovative double-helix columns that mimic tree branches for efficient weight distribution.
The basilica incorporates symbolic mathematical features like a magic square summing to 33 on the Passion façade.