Neoclassical Architecture emerged in the mid-18th century as a reaction against the ornate styles of the Baroque and Rococo periods. It draws inspiration from the classical art and architecture of ancient Greece and Rome, emphasizing symmetry, proportion, and the use of columns. This style is characterized by its grandeur and simplicity, often featuring domes and pediments. Prominent examples of Neoclassical Architecture include the Pantheon in Paris and the United States Capitol in Washington, D.C. The movement sought to convey ideals of democracy and civic virtue, making it a popular choice for public buildings and monuments during the Enlightenment.