It’s a doll house, that looks remarkably like the Barrett murder house.
It is a two story house, with a base that is a partial basement and an attic, as well as trays that surround the outside with furniture, parts of dolls, animals etc.
In was found in the attic of the house we were transported to by looking the mirror that appeared in the Barrett murder house. In that realm, the furniture, dolls and animals could be manipulated and would appear where ever you put them in the house.
We brought it back through the mirror and it was damaged when Andrew, and Greg were escaping their van that has been posessed by the spirit of Anna.