These are some old screen shots from a voxel engine I've been working on. I have a lot of the editor working, but there's still so much more to do. What are these places supposed to be? I don't know, but I hope they look cool to you. Those numbers in the top-left corner are the frame rate. If you have a Pentium III-933, then that's what you'll get. BTW, the picture on the bottom (with the stairs) was converted from a popular game... maybe you recognize it. :)
I have some panoramic screenshots of the Voxlap engine on this page (from 11/20/2000)