Bullnose
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A bullnose is a broad convex radius on construction materials such as wood, masonry, and ceramic tile. The term is also used for materials featuring such a profile, as in a “bullnose tile”. It is also
Bullnosed ceramic tile trim
Clerestory
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A clerestory is a high section of wall that contains windows above eye level. Its purpose is to admit light, fresh air, or both.
The church of St Nicholas, Stralsund in Germany – the clerestory is the level between the two green roofs, reinforced here by flying buttresses
The walls of the clerestory of the basilica-shaped Cathedral of Monreale, Italy, covered with mosaics
Front-view profile of Great Hypostyle Hall, an early example of a clerestory.
Malmesbury Abbey, Wiltshire, England. The nave wall is divided into three stages: the upper stage with windows is the clerestory, beneath it is the triforium, and the lowest stage is the arcade.