Hi I see this thread is two years old but what was inside the Topsy Turvy House was a long wooden seat suspended on a horizontal pole and as the house rotated 360 degrees a guy rocked the seat backwards and forwards. This gave the optical illusion off the the house standing still and you were rotating in a 360 degree motion going backwards over and over again, I hated it. It was the only ride that made me sick,never went on it again.