
Etienne-Louis Boullee, project for a Cenotaph for Isaac Newton, 1785

Karl Friedrich Schinkel, Altes Museum, Berlin, 1830

Joseph Paxton, Crystal Palace, London, 1851

Joseph Paxton, Crystal Palace, London, 1851

Francois Hennebique, monolithic reinforced concrete joint, patented 1892
in lecture

Soufflot, Ste-Genevieve (Pantheon), Paris, 1790

Soufflot, Ste-Genevieve (Pantheon), Paris, 1790