21. The entrance door is arched with voussoirs . 22. The voussoirs are each about wide, and there are nine inside and seven outside. 23. In the gable is an ocular ventilation opening framed by voussoirs and set with louvres. 24. The upper floor has four round headed windows with prominent voussoirs , separated by pilasters. 25. The upper floor has four rounded headed windows with prominent voussoirs , separated by pilasters. 26. It featured arched windows with radiating voussoirs . 27. In Moorish architecture, the voussoirs are often in alternating colors, usually red and white. 28. A gabled dormer and round-arched window with stone voussoir projects above each bay window. 29. Generally, first-floor windows are rectangular and have flat arches of radiating brick voussoirs . 30. It has entrances on three sides, each under a round Richardsonian arch with carved voussoirs .