column
A decorative pillar, most often composed of stone and typically having a cylindrical or polygonal shaft with a capital and usually a base.
For our tagging purposes the important parts are the presence of a capital (the decorative upper end) and/or base (decorative bottom end).
If the image has a pillar with a decorative upper or bottom end, it's a column.
If the image lacks those features, then it's a pillar.
See also
- arch
- architecture
- colonnade
- pillar
- Column and Pillar Tags (Danbooru Forum Discussion Thread)