In Classical Architecture, what comprises a column?

A column in Classical Architecture is composed of a shaft, base, and capital. The shaft is the vertical part of the column, typically cylindrical, and serves as the main support element. At the bottom, the base provides stability and helps transition the column from the ground to the shaft. The capital is located at the top of the column and often features decorative elements that can vary in style depending on the order of the column, such as Doric, Ionic, or Corinthian.

This structure is essential in Classical architecture as it not only provides support for the entablature above but also contributes to the aesthetic quality of the building. Classical orders are characterized by the specific proportions and details of these components, which define the overall harmony and beauty of the architectural composition.