THE PARK GUELL IS A PUBLIC PARK LOCATED ON MOUNT CARMELL IN THE NEIGHBORHOOD OF LA SALUT , GRACIA DISTRICT . EUSEBI GUELL ASSIGNED THE DESIGN OF THE PARK TO ANTONI GAUDI .THE PARK BUILT BETWEEN 1900 AND 1914  AND WAS OFFICIALLY OPENED AS PUBLIC PARK IN 1926 .UNESCO DECLARED THE PARK A WORLD HERITAGE SITE UNDER “WORK OF ANTONI GAUDI .”THIS SITE IS REALLY VERY POPULAR  THAT WHEN I VISITED THIS PLACE THE ONLY AVAILABLE SLOT TO TOUR THE MUSEUM IS 5:00 PM . BUT I CANT WAIT FOUR HOURS FOR THAT TOUR , BUT ITS FREE TO WALK AROUND THE PARK .THIS IS WHAT THEY CALL NATURE TOUR  ITS FREE . YOU CAN SEE SOME UNUSUAL THING . EVERYTHING HERE IS MAN MADE WITH UNUSUAL DESIGN .WHILE WALKING ON THE NATURE TRAIL , YOU CAN SEE THE INSIDE OF MUSEUM EXCEPT FOR INDOOR .THE PRICE IS REALLY REASONABLE AT 8 EUROS .THEN WHEN YOU REACHED THE TOP OF THE HILL ,YOU CAN SEE THIS BEAUTIFUL HOUSE NAME SALVE.FROM THAT POINT YOU CAN SEE THE BEAUTIFUL SCENERY OF BARCELONA , INCLUDING THE SAGRADA DE FAMILIA CATHEDRAL .EVEN DO I WAS NOT ABLE TO SEE THE INSIDE , WALKING AROUND THE PARK IS REALLY WORTH VISITING THE PLACE .