In message , Graeme
writes

In message
Paul Terry wrote:

Although I've seen that said many times, it must have been possible in
theory as the 1913 Metropolitan Railway Act proposed that an already
authorised line from Moorgate to Lothbury be extended to connect with
the Waterloo and City. Railway No. 5 in the bill proposed extending the
line from Lothbury to a junction with the W&C "at or near the eastern
end of the up platform of the Bank Station on that railway beneath Queen
Victoria Street".

There's been a certain amount of building and rebuilding since 1913...

Yes, although less around Bank (other than restoring bomb damage) than
in other parts of the city. Even when the Bank of England was rebuilt,
it was done on its earlier footprint. I imagine the line would have run
below Prince's Street, which is still there.

(Not that I think that it's a very viable proposal, though!)
--
Paul Terry