Super Star Destroyer
From Multiversal Omnipedia
The Super Star Destroyer is a dozen times the length of a Star Destroyer, Super Star Destroyers are 11-mile-long warships that are the largest vessels in the Imperial naval fleet. Super Star Destroyers have thirteen engines and are commonly accompanied by a fleet of Star Destroyers. Darth Vader's personal ship, the Executor, was a Super Star Destroyer.
