In message , at 21:28:19 on Fri,
22 Jul 2005, Theo Markettos
remarked:

http://www.loveplums.co.uk/Tube/HolbornViaduct.html

The map at the top of the page shows two other much discussed topics.

At the bottom of the map, the route of the Waterloo and City line, and
in the middle the "Post Office" after which today's St Paul's station
was originally named. The station building itself is shown to the north
of Newgate St; today probably in the middle of a traffic island next to
the entrance to the BT HQ.
--
Roland Perry