Simon Edgley from publishers Trinity Mirror Southern said local authorities were competing for advertising space without having to run a business on a commercial basis.
Every safeguard has been taken to prevent a mirror design mishap such as that which afflicted the Hubble Space Telescope and set that mission back a few years, staffers for the current mission said.
James Turrell's light installations toy with your sense of space and dimension, and Yayoi Kusama makes your reflection part of the art when you step inside her mirror-clad, polka dot mannequin room.