Asymmetry has always been one of the main features of Armenian architecture, whether in the architecture of medieval churches or in 20th-century designs. It was used both in overall spatial structure of a building and in façade composition. In Soviet modernist architecture wherein buildings were primarily box-shaped, structures, architectural expression or plasticity could be practiced on façade composition. Hence in many buildings, asymmetrical design of windows and decorations was the only means to bring diversity to the façade composition. Another ubiquitously practiced method was accentuating the entrance block of a building by an asymmetrically placed entrance. Tourettes were also often placed asymmetrically.