ADVENTURES IN SKETCHUP

Sketchup is addictive!  I've spent a lot of time creating a three dimensional model of the house I grew up in.  You don't know how many details you have forgotten till you try to do this.
I went on to do Sherlock Holmes flat.  I started with the PBS version and then modified it with a few features from the Connan Doyle stories left out of the TV set.  However, Doyle seems to have not had a consistent notion of the layout.  So I have had to make compromises.