The Fortress of Solitude is Clark Kent's sanctuary in the Arctic,[1] which holds information about his dead planet Krypton and allows him to communicate with the A.I.'s of his late ancestors.[2]
Kara Danvers began using the Fortress as well after becoming Supergirl.[3]
Contents
Overview
The Fortress of Solitude is a vast sanctuary hidden somewhere in the Arctic. It appears to be built entirely from either crystal or ice. [1]
Inside, the compound houses a display of items Superman collected over the years from his adventures, as well as statues of his parents. Also present is some form of interactive computer database.[2][1]
History
At some point in the history of Earth-Prime, three rings that could absorb and emit Kryptonite radiation[4] were stored in Fortress. The Jarhanpurian named Rama Khan claims that they were his and were stolen from him long ago.[5]
Clark asked Lois to marry him in the Fortress.[6]
Some time after 2007, Clark checked to see if Jonathan had superhuman abilities after showing some natural talent for sports. The Fortress's tests said it was unlikely however.[6]
In January 2020, Kara Danvers kept a bottled Earth in the Fortress until she and her allies would find a way to restore the universe in the new multiverse.[3]
Angry that Kara planned to use Myriad after saying that it was forbidden, Lena Luthor was teleported to the Fortress. Unbeknownst to her, a Morae who worked for Leviathan traveled with her. As Kara and Lena argued about hypocrisy, the Morae agent opened the cage to a baby Sun-Eater.

Inside the Fortress.
Later, Lex Luthor noticed that he had access to the Fortress through the teleporter;[1] while he was there, he stole something for Leviathan to be used against Supergirl.[5] It was Rama Khan's rings.[4]
Clark had brought Jordan to the Fortress after he manifested some abilities and wished to test for more information. However the A.I of Jor-El concluded that Jordan's powers were a result of brief flare ups and that his human DNA would limit him.[7]
Known stored items
Current stored items
- Earth-TUD17 (bottled)
- Myriad
- A baby Sun-Eater
Former stored items
- Rama Khan's rings (taken by Lex Luthor)
Known visitors
Appearances
Supergirl
Season 5
- "The Bottle Episode" (mentioned)
- "It's a Super Life" (video footage)
- "Deus Lex Machina"
- "The Missing Link" (mentioned)
The Flash
Season 6
- "Marathon" (on a map)
Superman & Lois
Season 1
References
- ↑ 1.0 1.1 1.2 1.3 "Deus Lex Machina"
- ↑ 2.0 2.1 "It's a Super Life"
- ↑ 3.0 3.1 "The Bottle Episode"
- ↑ 4.0 4.1 "Immortal Kombat"
- ↑ 5.0 5.1 "The Missing Link"
- ↑ 6.0 6.1 "Pilot"
- ↑ "Heritage"
Other versions of Fortress of Solitude (Earth-Prime) | ||||
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To see other versions of this location, click the Earth name below for that Earth's counterpart of Fortress of Solitude. | ||||
New multiverse | ||||
Earth: Prime | ||||
Original multiverse | ||||
Earth: 38 • 86 |