Iron Tower
located on the planet Aridus, this huge structure was built by the Empire to overcome the intense interference generated by the planet's magnetic fluctuations. However, the intense frequency used by the Tower to overcome the interference caused massive neurological damage to the native Chubbits. When Darth Vader tried to capture Luke Skywalker on the planet by having an actor pose as Obi-Wan Kenobi, the Iron Tower was partially destroyed when Luke escaped from the trap.