Igloo of Solitude

The Igloo of Solitude is Superman's favorite retreat.

It has largely replaced the Fortress of Solitude, which is dilapidated -- probably a tear-down.

Eco-tourism

The Igloo of Solitude is a popular eco-tourist destination, generating considerable revenue for the Superman Foundation.

Controversy

Greenpeace Exoplanetary has accused the Superman Foundation of secretly promoting Elixir of Radium, citing the discovery of empty Klein bottles (nonfiction) near the Igloo.

Fiction cross-reference

• Like a marble in a Codd-neck Klein bottle
• Superman
• Superman Foundation

Nonfiction cross-reference

• Superman (nonfiction)