"The Junkyard" is where the Jellicle Cats seem to live in Cats. There is no name for it within the show, but people have called it the Junkyard due to it's appearance.
The Junkyard is portrayed differently in some p
roductions, but the usual production has a car with the number plate TSE 1 or NAP (number), an oven, a pipe (where Mistoffelees notably conjours Old Deuteronomy from). The sky has a moon in the background.