After completion of the crypt and the apse, still in Gothic style, the rest of the church is conceived in an organic style, imitating natural shapes with their abundance of ruled surfaces. He intended the interior to resemble a forest, with inclined columns like branching trees, helicoidal in form, creating a simple but sturdy structure. Gaudí applied all of his previous experimental findings in this project, from works such as the Park Güell and the crypt of the Colònia Güell, creating a church that is at once structurally perfect, harmonious and aesthetically satisfying. The Sagrada Família has a cruciform plan, with a five-aisled nave, a transept of three aisles, and an apse with seven chapels. It has three facades dedicated to the birth, passion and glory of Jesus, and when completed it will have eighteen towers: four at each side making a total of twelve for the apostles, four on the transept invoking the evangelists and one on the apse dedicated to the Virgin, plus the central tower in honour of Jesus, which will reach in height. The church will have two sacristies adjacent to the apse, and three large chapels: one for the Assumption in the apse, and the Baptism and Penitence chapels at the west end; also, it will be surrounded by a cloister designed for processions and to isolate the building from the exterior. Gaudí used highly symbolic content in the Sagrada Família, both in architecture and sculpture, dedicating each part of the church to a religious theme. During Gaudí's life only the crypt, apse and part of the Nativity facade were completed. Upon his death his assistant Domènec Sugrañes took over the construction; thereafter it was directed by various architects. Jordi Bonet i Armengol assumed responsibility in 1987 and continued as of 2011. Artists such as Llorenç and Joan Matamala, Carles Mani, Jaume Busquets, Joaquim Ros i Bofarull, Etsuro Sotoo and Josep Maria Subirachs (creator of the Passion facade) have worked on the sculptural decoration. Completion is not expected until at least 2026. During the last years of his life, apart from his devotion to the Sagrada Família, Gaudí participated only in minor projects, which were not completed: in 1916, on the death of his friend bishop Josep Torras i Bages, he designed a monument in his honour, which he wanted to place in front of the Passion facade of the Sagrada Família.