The Fortress:
- Throughout the span of Superman's career, he has maintained three different locations as his Fortress of Solitude. Many years ago, Superman placed himself into a self-imposed exile from the planet Earth. During this journey, he met an aging alien known only as the Cleric. The Cleric recognized Superman as the Last Son of Krypton and gave him an ancient Kryptonian artifact known as the Eradicator. The Eradicator represented the sum total of all Kryptonian knowledge, lore and culture. Superman brought the device back to Earth, but when it began behaving strangely, he buried it deep down in a fissure in Antarctica. The Eradicator was still active however, and it opened up a dimensional portal and extracted various resources that it used in an effort to recreate Krypton on Earth. This also included the creation of robotic servants, patterned after the maintenance droids that once serviced the House of El on Krypton. Despite the Eradicator's attempts to convert him and the rest of Earth into a new Krypton, Superman kept the Fortress as it was the only thing he had to his home. However, it would be destroyed when the Eradicator, under the guise of the "Last Son of Krypton", absorbed the energies of the Fortress to heal himself after nearly being killed by the Cyborg Superman. Superman would later rebuild the Fortress, only to have it destroyed by Dominus during the Man of Steel's time as "King of Earth". A second Fortress would be built by John Henry Irons, using terrasect technology to create a mobile, compact Fortress, though this would be destroyed as well. A third Fortress would be set up before the events of Infinite Crisis in the Amazon. However, this would be abandoned quickly and turned into a tourist attraction. The current Fortress was set up after Superman launched a Kryptonian Sunstone into the Antarctic, the Sunstone's power creating his new base of operations until the events of "Flashpoint".
Void Earth:
- With the disappearance of Superman, the Fortress was left in the care of Mike-El in order to be used to preform heroic acts alongside others. The Fortress has remained silent, with only Mike-El and the Superman Robots knowing how to enter and exit the large ice structure. As it stands, no outsider has been in the Fortress since the days of Superman.
