The Broadway had 900 seats for 1974
Candide.
Many great designs have been mentioned but two that haven't been are Adrienne Lobel's designs for the original Broadway production of
Passion and Marina Draghici's designs for the NYSF production of
The Skriker. Even though the former was filmed, the film gives you very little sense of how stunning a few of the drops were. And the scene on the mountain was one of the most amazing things I've ever seen. It was a mix of the drop, Fosca's costume and the lighting, all these shades of green that produced an extraordinary, hallucinatory quality. Watching the film, you don't get what was so amazing live.
Photos of
The Skriker are online at
http://www.proofsheet.com/public_theater/skriker/source/076.htm Unfortunately, even though there's a bunch of photos of the scene that was especially extraordinary (again, one that created a kind of hallucinatory effect), what was special about the set doesn't come across (though the wonderful costumes can be seen).