[ Crypt of Colonia Guell Church 1898]

It is a church built in Spain. "Colonies (= Colonia)" is a word that means "colonial state", "Community", Guell is a wide area of land, such as community workers can live, as habitable workers working in the factory is close to the workplace , Houses, schools, hospitals, etc. were also built on the premises. The Colonia Guell Church for worship was built in this complex. In 2005, it was registered as a UNESCO World Heritage Site (cultural heritage). In 1914, Gaudi retired from construction and left it to his assistants to concentrate on the Sagrada Familia Basilica. In 1915, the semi-basement was completed and used as a church. Then a temporary roof was installed, but construction was completely suspended in 1916. It became a parish church from 1955. The upper layer is still unfinished . It has a two-story structure consisting of a semi-basement floor and an upper church. Since the upper part was not completed, it was diverted to a church. The cupola ceiling is fully adopted, and the height of the outer shell is about 40m. The interior of the crypt has an egg-shaped plane , with four basalt pillars in the center, connected by arches. The ribs that support the vault extend from this central structure, and the force is transmitted from the inside to the outside to the colonnade that works in the center and further to the peripheral wall. There is a large window on the wall, and yellow, blue, green and rosy stained glass are set in a petal-shaped frame. A gentle space is produced by the light leaking from them. It is a cave- like space created by sloping columns and walls, rough-cut stones, and the dazzling colors of light and shadow. Without using any numbers or equations to design the slopes of the columns and walls , Gaudi spent 10 years experimenting. The experimental device is an "upside-down hanging model" with only strings and weights. Gaudi thought that a net-like thread with several weights attached and the shape drawn by the net turned upside down was a natural and durable structural form against vertical weighting. For craftsmen who suspected that the building might collapse during construction, they removed their scaffolding and proved the safety of the structure (this was the correct answer mechanically, because it is mechanically stable). It is the catenary curve itself that is widely used today).

It is interesting to note the many diverse material types and sources that Gaudi used over and over again in the first phase of this church. Basalt and limestone, various bricks, smelted slag, ceramics, glass, wrought iron, etc. are combined with textures and colors to achieve a clever integration of the building and its surroundings. Both the interior space and the exterior of the chapel boast excellent architectural quality. Gaudi presents us with a proclamation of archaeological architecture that understates and emotionally expresses the sublime and inseparable harmony between architecture and applied arts. A unique space with an atmosphere reminiscent of a sacred place, an unmistakable real work, one of Antoni Gaudi's finest works. The worship chair has a distinctive shape because it is designed by Gaudi. At the time of design, the material was to be designed with cheap bricks, but the pillars that support the tower are heavily loaded, so hard basalt was used. Steel beams were used where the floor height could not be obtained.