Neoclassical architecture, emerging in the mid-18th century, draws inspiration from classical antiquity and emphasizes grandeur, symmetry, dramatic use of columns, and domed roofs. Key figures include Giovanni Battista Piranesi, Claude Perrault, and Andrea Palladio, whose works shaped the neoclassical style and its principles. The Beaux-Arts movement further developed neoclassical elements, emphasizing sculptural decoration and a synthesis of historic styles.