Greek Revival architecture refers to a style that became popular in Europe and North America in the late 18th and early 19th centuries. It drew inspiration from the architecture of ancient Greece, particularly the classical temples, and became a prominent architectural movement during the Neoclassical period.

Key features of Greek Revival architecture include:

1. Pediments and Porticos: Greek Revival buildings often feature triangular pediments supported by columns, reminiscent of ancient Greek temples. These columns are typically Doric, Ionic, or Corinthian in style and are used to create grand porticos or colonnades at the entrances of buildings.
2. Symmetry and Proportion: Like its ancient Greek predecessors, Greek Revival architecture emphasizes symmetry and proportion. Buildings are often designed with balanced facades and harmonious proportions, following principles derived from classical architecture.
3. Entablature: Greek Revival buildings typically have a horizontal entablature consisting of an architrave, frieze, and cornice. These elements are often adorned with decorative motifs such as triglyphs and metopes, echoing the architectural details found in ancient Greek temples.
4. Simple Geometric Forms: Greek Revival architecture favors simple geometric forms, with clean lines and minimal ornamentation. Buildings are often characterized by their simplicity and clarity of form, reflecting the ideals of classical architecture.
5. Monumental Scale: Greek Revival buildings are often designed on a grand scale, with imposing facades and monumental proportions. This reflects the desire to evoke the grandeur and majesty of ancient Greek architecture.

Greek Revival architecture had a significant influence on the design of government buildings, churches, and mansions during the 19th century, particularly in the United States and Europe. It was associated with democratic ideals and the promotion of classical virtues, making it a popular choice for public buildings and institutions. Notable examples of Greek Revival architecture include the Parthenon in Nashville, Tennessee, the United States Capitol in Washington, D.C., and the British Museum in London.