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

The viselike setting is spatially difficult, yet culturally rich in opportunities to comment on the treasure house — with its power, prestige, human vanity and folly — just beyond.

From New York Times

This is also a period when museums are seen as overstocked treasure houses.

From New York Times

Tucked inside the Met’s Korea gallery you’ll find a treasure house of stationery boxes, furniture and even stirrups covered with slick black lacquer and inlaid with glittering mother-of-pearl.

From New York Times

Once a saffron-scented cultural treasure house, present-day Herat still looks proudly to its rich heritage of Persian poetry, miniaturist painting and resplendent architecture.

From Los Angeles Times

The artist competes not only with the breathtaking vista of Central Park, framed by a forest of Manhattan luxury towers, but also with the aura of the treasure house downstairs.

From New York Times