The Torre del Oro is a dodecagonal military watchtower in Seville, southern Spain. It was erected by the Almohad Caliphate in order to control access to Seville via the Guadalquivir river.
The Torre del Oro, view from the north.
This image shows completely the levels that are not Almohads, the second and the third level.
David Roberts - The Torre del Oro (1833)
Charles Clifford - El Guadalquivir, la Torre del Oro, Sevilla (ca 1862)
The Torre de la Plata is an octagonal military tower in Andalusia, located in present-day Seville, southern Spain. It was constructed by the Almohad Caliphate.
The Torre de la Plata.