"Salt Fortress" = SALZ BURG is one the most beautifiul place in the north Alps, Austria 4th city, and listed as UNESCO WORLD HERITAGE site since 1997.
Famous for its musical side, historically rich in salt .... Streets, parcs, museums, even bakeries, remember that MOZART MUSIC is the life salt in Salzburg !
Free classical concerts all summer long, Mozart born there in 1756, still alive !? ....
Reference : The sound of music