These two photographs depict Antonio Guadi's Casa Battlo and Casa Mila.

The first, Casa Battlo was built between the years, 1905-1907 made out of concrete in an expressionist or Art Nouveau style of construction.

The first concept of this building (pictured left) are the massively sized pillars, often compared and resembling an elephant's foot.

The obvious curves around the exterior of the building allow its easy classification as Art Nouveau, whereby Guadi has been assumed to be inspired by a birds nest in its flowing motion and shape.

Guadi continues his obsession with all things natural in Casa Battlo by the various colours generated by the Sun, intended to resemble fish scales.

Antonio Guadi's second building, Casa Mila, built between 1905-1910, built with concrete and masonary. In similar comparison to Casa Battlo, the curvy structure of the entire building is categorized as Art Nouveau.

Personally, this design to such a structure gives the illusion as the building has been warped. contrastingly, many individuals percieve the buildings structure to cave-like huts native in Africa