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The Torre del Oro (English: "Tower of Gold") is a dodecagonal military watchtower in Seville, southern Spain, built by the Almohad dynasty in order to control access to Seville via the Guadalquivir river. Constructed in the first third of the 13th century, the tower served as a prison during the Middle Ages. Its name comes from the golden shine it projected on the river, due to its building materials (a mixture of mortar, lime and pressed hay). The tower is divided into three levels, with the third and uppermost being circular in shape and added in 1769. The Torre de la Plata, an octagonal tower, is nearby and is believed to be built in the same era. *Note: This article has issues. ==Military function== It is one of two anchor points for a large chain that would have been able to block the river. The other anchor-point has since been demolished or disappeared, possibly from collapsing during the 1755 Lisbon earthquake. The chain was used in the city's defense against the Castilian fleet under Ramón de Bonifaz in 1248 Reconquista. Bonifaz broke the river defenses and isolated Seville from Triana. The besieged Muslim city soon surrendered to the Christian forces. 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「Torre del Oro」の詳細全文を読む スポンサード リンク
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