Windows, Arcs & Pillars Designs

Decorative of windows, arcs and columns is to beautify building and add value to the building.

A column might also be a decorative element not needed for structural purposes; many columns are "engaged", that is to say form part of a wall.

There is another type of pillar that stands alone and is not connected with any other structure; this type of pillar was designed to attract attention and to serve as a place around which a crowd could gather.

Arc is a circle which a heavenly body appears to pass through as it moves above and below the horizon.