A magnificent marriage of Christian and Mudéjar architecture, Seville’s royal palace complex is a breathtaking spectacle. The site, which was originally developed as a fort in 913, has been revamped many times over the 11 centuries of its existence, most spectacularly in the 14th century when King Pedro added the sumptuous Palacio de Don Pedro, still today the Alcázar’s crowning glory. More recently, the Alcázar featured as a location for the Game of Thrones TV series. Note that long entry queues are the norm here. To cut waiting time, it pays to pre-purchase tickets at www.alcazarsevilla.org.