Classical columns are architectural elements that originated in ancient Greece and Rome. They are typically divided into three main styles: Doric, Ionic, and Corinthian. Each style has distinct characteristics, such as the simplicity of the Doric column, the scroll-like volutes of the Ionic, and the ornate floral designs of the Corinthian. These columns serve both structural and decorative purposes, supporting roofs and creating an aesthetic appeal in buildings. Classical columns are often found in temples, public buildings, and monuments, symbolizing strength and beauty in architecture throughout history.