Aerial view orbiting Alcazaba of Mérida Muslim fortification and roman bridge on the Gaudiana river, Spain

aerial view orbiting alcazaba of merida muslim fortification roman bridge merida guadiana river spain scenic spanish city aqueduct archway historical blue green cityscape woodland extremadura puente romano de merida skyline crossing tourism architecture water landmark touristic historic landscape stone ancient structure waterway panoramic unesco archaeology world heritage engineering world heritage site horizon connecting scenery blue sky vast distance channel