It IS an RV. It doesn't have slides, but it does have raisable turrets -- and three draw bridges and a water wheel. The two bedrooms in the turrets are carpeted with sheepskin, have comfy beds, and cannon ports. Cannon ports? And I haven't even mentioned the on-board blacksmith shop with two post vices, gas forges, and a 380 pound anvil!
This rig was parked in the Kartchner Caverns campground, and was an instant attention-getter. They have a sign on the back giving passer-bys the FAQs, and a link to their website: Gypsy Time Travelers, where they provide information about the shows they do on the road:
We Make History Ring In Your Ears!"
Their website also has a section on the "Building Our Time Machine." Very cool, check it out.