First major stone structure.

Piero della Francesca The Flagellation of Christ1416-1492
Florentine Renaissance
Geometric Composition

Angle too steep, exterior wall collapse caused massive death count of skilled workers, aka 9/11.

Pablo Picasso The Poet
1881-1973
Analytical Cubism: 360° Perspective

Original angle adjusted but impure structure could not be used.

Pablo Picasso
1881-1973
Les Demoiselles d’Avignon 1907

True pyramid form achieved.

Paul Cezanne Montagne Sainte-Victoire (3 views), Le Chateau Noir
1839-1906
Post-Impressionism
Searching for Underlying Geometrics

New scientific/astronomical theories on alignment of Giza structures.

Piet Mondrian Abstracts with Color
1872-1944
De Stijl: Cubism Taken to Abstraction