Re. moving walkways:
 
I remember vividly the moving walkway used at the 1964-65 New York World's
Fair to keep people moving in front of Michelangelo's "Pieta."  I hated
the walkway, because it permitted only one view of the object, and didn't
let me stand and study the object at any length.  I understood why it was
there, though:  the safety of the object, and the number of visitors to
be accommodated, had to be taken into consideration.
 
Jenni Rodda, Curator
Visual Resources Collections
Institute of Fine Arts
New York University
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