I haven't seen this here so..

London Underground is opening the doors of the old Aldwych Underground
station, closed to the public since 1994, for a special exhibition in
the ticket hall, to show how the Tube is being transformed.

The exhibition will take place from Monday 28 June to Friday 9 July
from 10:00 to 19:00 on weekdays and 10.00 to 16:00 on the weekend. The
entrance to the exhibition is on Surrey Street, WC2R 2NE, which is off
the Strand and off Temple Place, with Temple station the closest Tube
station.

More details at http://www.tfl.gov.uk/corporate/proj...mes/10127.aspx

Regards
Sunil