This is the title I proposed for LF2006. I thought transportation worked successfully last year because it was a broad enough topic for every grades' ss curriculum. Home/House, etc. could also be easily adaptable. A good place to start is with good, simple graphical material. I like Usborne books for this reason. The image here comes from an Usborne book on different historical world homes that's currently out of print. I've scanned the whole book and can make it available to you in whole or part. I have also begun making response assignments for each section. Here's one (a word doc)
houses from different ages
Later I will post an image of the page above/right with better resolution.