Definition of land of oz:
(N) :
a magical country introduced in the 1900 children's novel The Wonderful Wizard of Oz written by L. Frank Baum and illustrated by W. W. Denslow.
(N) :
a theme park based on L. Frank Baum's Land of Oz books, located in the resort town of Beech Mountain, North Carolina, US.
(N) :
a fictional country first introduced in L. Frank Baum's novel based on The Wonderful Wizard of Oz.