Stretch your legs and get cultuREAL heritage? Sure would beat all the vending machines in and around the bathrooms! Also, Why not put some of the roadsigns themselves into the roadside display as a testimony to a time when the belief in observing them was much more common than it seems to be today. We could include psycholinguistic history for words such as "roadkill" and "speedzone," or devote space to post accident - pre-wrecking yard vehicles to document the "actual" activities of roadside users/dwellers. "Through No Asphalt of Ours" could be the exhibition title, with exhibits north and south along I-5 on the West Coast...could be a moving exhibition, so to speak as well...visiting perhaps your states' freeways. And What about Mall museums, Supermarket museums, and fast food joint museums? There are more opportunities than money, but hey!