I found a way to angle the camera at a shrunken point of view in "The Sims 3", so I decided to make a giantess video! I forgot to cover the roof, so the sky is still visible, but other than that I think it's a pretty good representation of what it would be like for a shrunken person exploring a giantess's house. Enjoy!
NOTE: Just about anyone with all of the game updates to "The Sims 3" can do this. I think the "Q", "W", "E", "A","S", and "D" keys are the ones that allow you to move the camera up, down, left and right.