Basil Jet wrote on 24 January 2011
18:29:05 ...
On 2011\01\24 18:14, Richard J. wrote:

Basil actually mentioned Park Square, which is at the northern end of
Portland Place. If you don't believe that the Jubilee goes anywhere near
Park Square, ask the Journey Planner for a journey from St Johns Wood to
Marylebone via Waterloo, use a View button to look at one of the offered
journeys and click on one of the map icons (not the PDF ones). You'll
see that the Jubilee runs close to the Bakerloo for most of the way from
Marylebone to Regent's Park.

Thanks! I mentioned Park Square because IIRC there's a Jubilee Line
fanshaft there.

That's right. An elegant little octagonal structure. It should be
viewable (outside only obviously) on 11 & 12 June 2011 (London Open
Garden Squares weekend).
http://www.opensquares.org/detail.php?square=ParkSq
--
Richard J.
(to email me, swap 'uk' and 'yon' in address)