Section 8.14
The building height restrictions of all zoning districts shall not apply to the following: parapet walls and cornices not exceeding four (4) feet in height, chimneys, cooling towers, elevator bulkheads, fire towers, gas tanks, grain elevators, silos, stacks, stage towers and scenery lofts, water tanks, public monuments, church spires, belfries, cupolas, domes, ornamental towers, and penthouses or roof structures housing necessary mechanical appurtenances.