Vittorio Sgarbi, one of Italy's most popular art critics, said the cleaner "was right" to throw the installation in the trash.
"If she thought it was rubbish, it means it was. Art should be understood by everyone — including cleaners," Sgarbi told NBC News. "The fact that the museum could simply pick the pieces from the trash bin and put them back together shows you that wasn't art in the first place."