I don't read
Model Railroader very often, but the new issue had something I found inspiring.

It was a cartoon featuring two men with what appears to be a two-level pizza layout. The top level had the New York skyline with the Statue of Liberty backed up to a mountain range. The bottom level appeared to be a subway layout. One of the men says, "Now
that's selective compression."
Looks like it would be a fun layout to build. If you're interested, it's on page 109 of the February, 2010 issue. I wish I could post it here, but I don't want to run afoul of any copyright issues.

I am glad that they're finally putting some decent plans in
Model Railroader!