Awesome pics Dave! I especially love the pics of the TV screen! They remind me of the days when I would record the audio only of Star Trek in the 80's.
Your pics sure beat the few crappy 110 and 126 prints I have left:
This one below is the ONLY photo I have that was taken at the Lewis Visitor's Center:
It showed a concept tilt rotor landing at a small airport. Unfortunately what's not in the photo were the small white cone shaped speakers on coiled phone wires that once you pressed the button on the display, played back info into your ear. Those were iconic and were at most displays.