treasure house

or treasure-house

noun

1. a building, room, or chamber used as a storage place for valuables; treasury.
2. a place or source where things of value or worth may be found:

   Books are the treasure house of ideas.

Word History and Origins

Origin of treasure house¹

late Middle English word dating back to 1425–75

Example Sentences

Iftikhar drew from his bosom a tiny silk bag, and took forth a ring set with a single emerald, worth an emir's treasure house.

From Project Gutenberg

For he was certain that the isolated structure Soriki had pointed out was not the treasure house they had come to loot.

From Project Gutenberg

At last he picked it up and carried it to his treasure-house and covered it over very carefully.

From Project Gutenberg

Enough to say that this treasure-house of art is apt to give the visitor a sense of general splendour on the brain.

From Project Gutenberg

In this literary treasure-house Borrow found facilities for study such as he nowhere else could hope to obtain.

From Project Gutenberg