...check this out. It's Gilbert & Sullivan's Utopia Limited (1893). This was one of their last operas, and is described by Wikipedia as one of their "Penultimate" operas.
Here is a G&S archive that I will add to the "Classical Links" section at the bottom of this page.
Here is their very interesting write-up on Utopia Limited.
If by chance any onlookers happen to show up to this performance, I wouldn't mind you writing a short review below.