Built between 1946 and 1956, the Universidad Laboral is the most important architectural work built in the 20th century in Asturias and is considered, with its 270,000 m2, the biggest building in Spain.

The church is the most spectacular building. With a surface area of 807 m2, it is the biggest church with an elliptical floor in the world.

The church has a 2,300-ton dome. The height between the floor and the highest point of the dome is 32 m. In the construction of the church about 450,000 bricks were used. The floor is made entirely of marble and the benches, for more than one thousand people, of a special wood from Equatorial Guinea. The original benches were cut exclusively for this church and each was made in one piece. Today, the benches are not in the church.

The church is unconsecrated and has no Catholic icon. It is currently used to host art exhibitions.

[from Wikipedia]