Column stays the same on all non tapered columns. This was done to the columns to add visual interest to them. The ionic order and the corinthian orders are the only column styles that have fillets and flutes. The doric style has flutes but not fillets. Doric flutes are connected at a sharp point where the fillets are located on ionic and corinthian order columns. Most classical columns arise from a basis, or base, that rests on the stylobate, or foundation, except for those of the Doric order, which usually rest directly on the stylobate. The basis may consist of several
Bodleian Library the "Old Schools Quadrangle", or the "Old Library") was built between 1613 and 1619 by adding three wings to the Proscholium and Arts End. Its tower forms the main entrance to the library, and is known as the Tower of the Five Orders. The Tower is so named because it is ornamented, in ascending order, with the columns of each of the five orders of classical architecture: Tuscan, Doric, Ionic, Corinthian and Composite. The three wings of the quadrangle have three floors: rooms on the ground and upper floors of the quadrangle (excluding Duke Humfrey’s Library, above the Divinity School)