Aldwych Tube Station: The famous London Underground has a defunct station: Aldwych. The station opened in 1907, but was closed for the duration of WWII and used to hide and transport museum pieces and provide shelter from aerial bombardments. It was reopened after the war, then closed permanently in 1994 due to lack of use. The station and tunnels surrounding it have since been used to film multiple action movies. You are unlikely to ever see it (except on film), unless you get invited to one of the art exhibitions, book launches or other private parties that are occasionally held there. Otherwise it’s closed to the public.