The Veletržní Palace originally served as the headquarters of the Prague Trade Fairs and later as the center for foreign trade. At the time of its construction, it was considered the largest building of its kind in the world. In 1976, a massive fire struck the palace, causing significant damage. However, the building underwent extensive reconstruction and is now home to the National Gallery Prague. The gallery is filled with natural light, especially through ribbon windows, glass walls, and the ceiling of the main hall. Although the structure appears highly symmetrical, it is actually built on an irregular floor plan, and its height varies according to the terrain. To achieve a sense of symmetry, even the axial distances between columns differ. This creates the illusion of perfect regularity, despite there being practically no right angles in the building’s layout.