The entrance facade, in the southern cylinder, is a wall of glass flanked by square
corner pilasters, while the northern cylinder is illuminated by 56 hexagonal windows inserted into the diagonal brick grid of the frame.
(Google searches can get interesting when, for example, your last name can mean
a corner pilaster, a flag corner, one of many cities, a territorial subdivision or township, and is used as the name of companies making loudspeakers, auto racing parts, and wine barrels.)