The rounded styles of your gaps along with the lip-like edges carved into your stone bordering them make a semblance of a completely open mouth, for which the Casa Batlló has been nicknamed the "household of yawns". The structure repeats on the 1st floor and in the look of two https://barcelonaculture13566.isblog.net/the-basic-principles-of-antoni-gaudí-architecture-50518671