We spent our last day in Barcelona at Montjuic, a small mountain clear across the other side of the city. For centuries, the mountain was mainly used as a defense post guarding Barcelona, but in the twentieth century it became a prime hosting ground for various world fairs, exhibitions, and Olympics. Placa d'Espanya marks the grand entrance to the whole area, guarded by two Venetian belltowers, for no particular reasons. Like most of the buildings on the mount, these were built for exhibition purposes, and they still host various trade fairs throughout the year. Barcelona's bullring also sits off the plaza.