"Land of the Great Horses" is a short story by R. A. Lafferty from Harlan Ellison's science fiction anthology Dangerous Visions. The story takes a broad view of the earth after extraterrestrials (the Outer Visitors) return the native land of the Romany (the Land of the Great Horses), on which they had been experimenting. Roma everywhere leave their work to return to it. They then scoop up the city of Los Angeles, whose residents become the new wanderers, Angelenos. When asked what happened, they commonly reply, "They came and took our Dizz away from us." Source: Wikipedia (en)