Sad Sprinter
Established Member
You forgot Goodge St and on the Central line Chancery Lane.
Re the connection at Charing Cross it is still there and in more than one place if you know where to look.
You are right about various safety reasons and all that but there is a tunnel at Charing Cross. Before Westminster was rebuilt there was a connection from the EB platform to the old Scotland yard.
The only secret ones are either the ones you don't know about or the ones you don't have keys for and I don't mean signal rooms.
Are you suggesting you might have they keys?!