Gaudi designed and built a Schoolhouse for the children of the workers.

Model of the interior structure of the Sagrada Familia

Model of the Sagrada Familia as it will appear upon completion, being built to a scale of 1:25

Model reconstructed from the broken remains of Gaudi's original model

Hooke’s theorem translated from Latin: "As hangs the flexible line, so but inverted will stand the rigid arch."

Similarly, this photo of Gaudi's simulation includes fabric for the main exterior panels.

A reconstruction of one of Gaudi's hanging chain models - which were developed "upside down".

The model inverted, show the to-be-constructed compression arches.

An early conceptual sketch.

Model of the Gloria facade - the last section in the construction sequence.

Model of the Passion facade

Model of the Passion facade

Josep Maria Subirachs' drawing of "The soldiers drawing lots for Christ's clothes", for the Passion facade

Josep Maria Subirachs' drawing for the Passion facade

Josep Maria Subirachs' drawing for the Passion facade

Model reconstructed from the broken remains of Gaudi's original model