Getting close to finishing up the helix.  Got roughly 2 more turns to go.

I decided I didn't really like how the Heki road material looked so I took it out.  I started also building up some foam risers for some of the locations of buildings.  I'll go through and had some terrain in the rest of the empty spaces with paper, and covered with masking tape to form the terrain top.  I'll then put down a new road using WS Smooth-it.

And while that's going on, I put up the cliff in the corner.  It's not glued in yet, but looks pretty good.