Geometric illusion on the Cathedral’s Floor
Florence, in Santa Maria del Fiore. This floor is completely flat. The remarkable optical illusion of the seventeenth century of the marble tiles of the Florence Cathedral. View from above, the intricate geometry creates the illusion of a giant abyss in which people could come across. The red, white, black and green marble floor was a colossal task to complete it took 160 years. It was created by the Grand Ducal Laboratories of Florence, led by the Renaissance sculptor Baccio d'Agnolo, and completed in 1660.









