For more on old Broadway theaters, there are also the later Mary C. Henderson's books "The City and the Theater," :"The Story of 42nd Street," and "The New Amsterdam." All have loads of pictures. I think "The Ziegfeld Touch" might also have pictures of the Ziegfeld Theater.
The multiplex Village East Cinema on Second Avenue used to be the Phoenix Theater, where "Once Upon a Mattress" and "The Golden Apple" "opened. Grease," "Oh, Calcutta!," "Best Little Whorehouse in Texas," and "Joseph and his Amazing Technicolor Dreamcoat" also opened there before moving to Times Square. It was a Broadway-size house.
The Manhattan Center was once the Manhattan Opera House. Kurt Weill's "The Eternal Road" played there.