There is no more perfect symbol of Seville's layered history than the Giralda Tower (or El Giraldillo) the bell tower of the city's cathedral. It stands a little apart from the main building; it was once the minaret of the mosque that stood on the site before it was razed to make way for the cathedral.
The lower sections of the tower date from that time, but its upper parts are Christian Renaissance architecture. The tower was once topped by a copper ball, but that fell in a 14th century earthquake and was replaced with a cross.
It's a long climb up the 100 meters (330 feet) to the top of La Giralda, but the views of the city and the statuary of the lower levels are stunning enough to make it well worth the effort. There are no stairs: you'll ascend on a series of cunningly designed ramps.
The Giralda Tower stands just next to the Cathedral, which is located in the Centro Histórico, a few blocks from the Bullring by the Guadalquivir River.