Prague opera, theatres

not sure about the Estates only been there for an opera and for concerts but you can do a tour of the Municipal House (Obecni Dum). I did the tour several years ago and really enjoyed it and I have also been to concerts there a few times over the years.

http://www.obecnidum.cz/en/turistic-tours.html

The National Theatre (Narodni Divadlo) arranges tours, as does the Estates Thr.:

Contact for tours at the National Theatre, the State Opera and the New Stage
Mgr. Sylvana Šoleová
tel.: +420 224 901 506
mobil: +420 778 449 535 /Mon–Fri/
e-mail: s.soleova@narodni-divadlo.cz

Contact for tours at the Estates Theatre
Vladislava Bruderová
tel.: +420 224 902 231
mobil: +420 778 449 536 /Mon-Fri/
e-mail: v.bruderova@narodni-divadlo.cz

Dale,
Great answer about tours, can you tell me if there is just a general admission to get into the Estates Theatre just to walk and look around on your own?

I very much doubt you will be able to wander on your own and think you will have to go on an organised tour.use the contact Dale has provided and ask what might be available.

Thanks Unclegus