Gaudí's tile is a hexagonal pavement that was designed by Antoni Gaudí in 1904, and it has become his most successful non-architectural work, probably the most popular. This pavement covers the sidewalks of Paseo de Gracia in Barcelona.

With three pieces an element is discovered, with seven parts the design comes to life, and the three hidden items recognized. The lights and shadows provoke in the relief an effect of movement reminiscent of the seafloor current.