The bottomless pit was added in 2016 and was part of a group build with Rocky Mountain Haunters. I didn't take very many pics, but you can see the basic structure, and the cool effects.
I purchased this vintage-looking light socket, which I mounted halfway between the mirror and the top glass so that the effect would repeat evenly. There is one light bulb and only two steps to this rope ladder, but you'd never know it by seeing this effect!
Daytime shot of the exterior. The reflective effect is only visible at night, because the glass reflects the sky during the daytime.