I've been to Alcatraz and stood in one of the solitary confinement cells (making sure the doors were firmly open!!).
It was an eerie experience and one that I wouldn't like to be in for any length of time! The normal cells were slightly better but I still wouldn't do it.
The only drawback with the idea that I can see is that it might not make very good telly, as all the "inmates" would be sitting around in their cells not doing very much.
