lions of the puente de piedra in zaragoza, spain

iberian peninsula spain spanish europe european outdoor outdoors outside spring sunny travel puente piedra zaragoza city striking stone bridge spans ebro river 15th century distinctive features presence four impressive lion statues two guarding entrance majestic sculptures crafted 18th enhance aesthetic charm contribute cultural historical significance providing captivating visual element iconic structure history historic architecture architectural culture sculpture statue touristic pillar pillars building buildings lions century bridge structure