metro de sevilla (undeground) train over the guadalquivir river,

guadalquivir river outskirts steel sustainable lifestyle beam blue sky blur blurred blurry bridge building burst cantilever city composite concrete connecting connection day daytime digital electric train engineering evening exterior four frames glitter landscape late long exposure metro sevilla mirror mirrored motion outdoor outdoors panorama panoramic view pillar post public transport transportation railroad railway reflected reflection bank scenery slow shutter speed span spanning sparkle structure subway sunset sunshine sustainability tranport tube underground water