After reading a great series of articles on 3D fractals http://blog.hvidtfeldts.net/index.php/2011/06/distance-estimated-3d-fractals-part-i/ , I knocked up this viewer. It uses fractals mentioned in the articles and some new ones.
Press space to bring up list of scenes, and click on any. Demo mode cycles through the scenes.
Use WASD keys and mouse to explore them and zoom on the nearly infinite detail.
Use 'f' to toggle flashlight.
If you get a great location press 'm' key and copy the output line to camerashots.txt file, ( or send it in a comment below)