App will make closed-off areas of Christian palace accessible to tourists . World Monuments Fund a `` sustainable tourism '' development , says World Monuments Fund . around two million people visit Alhambra summer 2012 , says Barbacci . The conservation effort will include work on the roof , carved wood ceiling and decorative plaster work and will be incorporated into the `` Hidden Alhambra '' application . Area to be broadened for tourists and preserved for future .
App will make closed-off areas of Christian palace accessible to tourists . World Monuments Fund a `` sustainable tourism '' development , says World Monuments Fund . around two million people visit Alhambra summer 2012 , says Barbacci . Area to be broadened for tourists and preserved for future .