From the Art MoCo Blog:
Heather Benning’s Dollhouse is a larger-than-life piece that was situated in a Saskatchewan field. The artist replaced the back of the house with Plexiglass, allowing for a typical dollhouse viewing. Inside, Benning had redecorated the abandoned house with furniture of the 1960s, when the house was left empty.
See the Artist's work at her website. I never even had a doll house, I was way more into Lego, but I still like it ;)