The training room. The building is made of two sections: a long nave (the stables) and, at the end, a square room that is covered with a cupula (the riding school) aimed at the training of cart horses and teaching the art of horseback riding.For the roof Gaudí chose a revolving vault (that creates a semi-spherical cupola) crowned by a lantern that lights the area.In two of the corners of the room, the architect designed staircases with triangular steps, which were inspired by the french historicist architect called Eugène Viollet-le-Duc