Walkway of a pedestrian bridge, Park Gueell, park by Antoni Gaudi, Barcelona, Catalonia, Spain, Europe

aisle antoni gaudi architects architecture architect attractions attraction barcelona province barcelona bridges bridge buildings building catalan catalonia catalunya colonade colonnade columned hall column corridors corridor cultural monuments cultural monument cultural sites cultural site deserted empty europe's europe famous place footbridges footbridge gardens gaudi halls hall heritages heritage landmark nobody no one no people parc gueell park guell park gueell park parque gueell passage pedestrian bridge pillared pillar hall pillars pillar place of interest porticoes portico province of barcelona sight southern europe south europe spain spanish structure tourist attractions tourist attraction tourist landmark travel photography unesco site unesco world heritage sites unesco world heritage site unesco world heritage unesco world hertiage site unesco world site unesco uninhabited walkway world heritage site world heritage