Someone mentioned Calico is southern California. This is a great place to check out on President's Day because they hold a re-enactment there and all of the old stores are actually filled and you can take tours throught the mines, etc. Rhyolite, toward Death Valley, is also pretty cool, and if you are driving from Las Vegas north on the 395 you will go through some pretty interesting Ghost Towns. Take a look at UNLV's website: http://digital.library.unlv.edu/boomtown/ if you want the history on some of these places or to see the pictures of what they originally looked like!