store + house

source: By m.prinke - Flickr, CC BY-SA 2.0

a building used for storing goods.

｟やや古｠ (食糧･兵器などの)倉庫.

a large supply of something:

〖a ～/～s of A〗 A〈情報･思い出など〉の宝庫.

e.g. an enormous storehouse of facts.