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In architecture, a boss is a knob or protrusion of stone or wood. Bosses can often be found in the ceilings of buildings, particularly at the intersection of a vault. In Gothic architecture, such roof bosses (or ceiling bosses) are often intricately carved with foliage, heraldic devices or other decorations. Many feature animals, birds, or human figures or faces, sometimes realistic, but often grotesque: the Green Man is a frequent subject. Bosses were also an important feature of ancient and Classical construction. When stone components were rough-cut offsite at quarries, they were usually left with bosses (small knobs) protruding on at least one side. This allowed for easy transport of the pieces to the site; once there, the bosses also facilitated raising and/or inserting them into place. An excellent extant example of such bosses can be seen at the Greek Doric temple of Segesta, at which construction was never completed. The bosses of several key elements of the temple, notably the crepidoma, remain as a testament to the construction process. ==Gallery== Image:Bosses_at_segesta_temple.jpg|The crepidoma of the Temple at Segesta, Sicily, showing a boss on each individual piece of stone. The bosses would have been removed in the finished version of the temple. Image:Salisbury_Cathedral_Detail_Bosses.jpg|Early English roof bosses in Salisbury Cathedral, England Image:Abbey_Dore_painted_Green_Man.jpg|Green Man roof boss from Dore Abbey, Herefordshire, England Image:saint.mary.redcliffe.nave.arp.jpg|The nave of St. Mary Redcliffe church, Bristol, England. Some of the thousand gilded roof bosses can be seen Image:Hereford cathedral 012.JPG|Bosses at Hereford cathedral (England) Image:Worcester cathedral 013.JPG|Bosses at Worcester cathedral (England) Image:Worcester cathedral 030.JPG|Bosses at Worcester cathedral (England) Image:Chelmno fara zwornik nawa pn 03.jpg|A boss at a church in Chełmno (Poland) Image:Catedral de Barcelona - 002.jpg|Bosses at Barcelona Cathedral (Spain) Image:F07 0080.JPG|Griffin boss at Cadouin Abbey (France) Image:F07 0091.JPG|Veronica's veil boss at Cadouin Abbey (France) Image:Lienzingen-Liebfrauenkirche 7.JPG|Madonna and child boss in Germany Image:Coluna2.JPG|Bosses at Jerónimos Monastery (Portugal) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Boss (architecture)」の詳細全文を読む スポンサード リンク
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