The Magic of Oz

place

Glass City

A city in the Land of the Mangaboos built entirely of glass

First named in Dorothy and the Wizard in Oz, ch. 2

1 of 1 citations here quote the sentence they rest on. All of them are checked against the book on every build.

As the books describe it

The houses of the city were all made of glass, so clear and transparent that one could look through the walls as easily as through a window. Dorothy and the Wizard in Oz, ch. 2

Appearances

Seen here

From the chapters set there, and from sentences that put the two together with a word of place. Being named in the same chapter is not enough.