triangulated structures By barbara.19 2635 BCE Saqqara Pyramid first triangulated structure, found in egypt 447 BCE Greek temples (Partenon) 100 Roman bridge over the Rin river 333 basilica of Saint Peter in Rome 548 St. Catherine's Monastery Founded by Justinian in the Mount Sinai 1097 Westmister Hall In London 1170 Sant Vicent os Soignies Romanic church in France 1226 Lisieux cathedral 1235 Notre Dame 1662 Sheldonian Theatre 1793 louvre 1887 eiffel tower 1933 Golden Gate bridge 2003 Varsovia Hotel