Inside the Sierpinski Temple 2

Created using Ultrafractal.
A Fractal architecture created using an escape-time formula for 3D IFS (mmf4.ufm-3D IFS from the Ultrafractal formula database).
The rooms/corridors where created using RIFS flags to open up the insides of the fractal.
Nothing much special about the lighting - it's two sources, one from the centre of the camera and one offset slightly using a modified Phong model that allows a surface "roughness" factor.