peter wrote:
John Rowland wrote:
I noticed today that some of the lead lattice windows in Tower Bridge have
been replaced with plain glass, so that some sort of cameras can peer down
on the bridge. Does anyone know the purpose of the cameras?

I'm surprised that Tower Bridge is not a grade 1 listed building - it
certainly ought to be - in which case changing the windows would not be
allowed.

Can bridges be listed in the way buildings are? I suspect a case could
be made that the modification is necessary for the function of the
structure, given the dammage caused to it by excessive modern traffic.

Robin