Greek Columns are a type of architectural column used in Ancient Greek architecture. They are divided into two main types: Ionic and Doric. Ionic columns have a more slender and graceful appearance, with a base that curves outward and a capital that is decorated with volutes. Doric columns are more robust and plainer in design, with a base that is slightly concave and a capital that is plain and unadorned. Both types of columns were used to support the roofs of temples and other important buildings in Ancient Greece.