The architecture of St Chapelle ( Paris, 1241-1248) displays many architectural themes of the High Gothic era it was constructed in. The large rose window immediately signifies the Gothic, accompanied by the buildings obvious search for "light, height and verticality" (Campbell & Cole, 2017), of which both defined such architecture. Arched windows and spires further define this. However, it is the 'glass cage' of the upper chapel that forms St Chapelle as a defining piece of Gothic architecture. When comparing St Chapelle to other Gothic architecture, such as The Cathedral Church of St Peter (Beauvais, 1225-1260) the imperative search for light among High Gothic architects is clear. The details and carvings in the upper chapel, especially on the glass windows, resume importance in architecture where it had little a century earlier in Romanesque France. Moreover, the interior of St Chapelle becomes one tall cavernous space that exemplifies the search for height in Gothic architecture without the need of flying buttresses.