The Torre del Oro is a military watchtower built in Seville, Spain during the Almohad dynasty in order to control access to the city via the Guadalquivir river. The tower was built as part of the defensive works running from the Alcázar to the river. The tower may have received its name from the golden tiles which cover its dome and may have once adorned the rest of the tower. Today the tower is a naval museum, containing engravings, letters, models, instruments, and historic documents. The museum outlines the naval history of Seville and the importance of its river.
