Explore la pedrera otherwise known as casa mil one of gaudis most inspired barcelona buildings on this 15 hour skip the line audio tour walk through the entrance reserved for skip the line ticket holders and view the interior of this early 20th century masterpiece at leisure as an audio guide chronicles the architects vision and buildings construction view the spiraling chimneys of the roof terrace learn about gaudis life at the espai gaudi museum in the top storey see a recreat