The Plaza de Toros de la Real Maestranza de Caballería de Sevilla is the oldest bullring in Spain. It is the site of the annual Feria de Abril in Seville, one of the most well-known bullfighting festivals in the world.
(more information: http://en.wikipedia.org/wiki/Plaza_de_toros_de_la_Real_Maestranza_de_Caballeria_de_Sevilla)
