The Magic of Oz

place

Tin Castle

The residence of the Tin Woodman, made of tin with towers and steeples.

First named in The Road to Oz, ch. 14

3 of 3 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 tin castle of Nick Chopper could plainly be seen, its towers glistening magnificently under the rays of the declining sun The Road to Oz, ch. 14
Every bit of the furniture was made of brightly polished tin--the tables, chairs, beds, and all--even the floors and walls were of tin. The Road to Oz, ch. 15

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.